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Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Federal Offshore California Coalbed Methane Proved Reserves ...  

Gasoline and Diesel Fuel Update (EIA)

12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Federal Offshore, Pacific (California) Coalbed Methane Proved Reserves, Reserves Changes, and...

2

Texas--State Offshore Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Texas State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and Production Coalbed Methane...

3

Louisiana--State Offshore Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production LA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and Production Coalbed Methane...

4

,"Federal Offshore California Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore California Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013...

5

Texas (with State Offshore) Coalbed Methane Proved Reserves ...  

NLE Websites -- All DOE Office Websites (Extended Search)

Texas (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0...

6

Texas--State Offshore Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Texas State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and...

7

Louisiana--State Offshore Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 LA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and...

8

Federal Offshore--Texas Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Federal Offshore Texas Coalbed Methane Proved Reserves, Reserves Changes, and Production...

9

California--State Offshore Coalbed Methane Proved Reserves (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 CA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and Production...

10

Lower 48 Federal Offshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Federal Offshore U.S. Coalbed Methane Proved...

11

Louisiana (with State Offshore) Coalbed Methane Proved Reserves...  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Louisiana (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

12

,"California--State Offshore Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","California--State Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

13

,"Texas (with State Offshore) Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Texas (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

14

,"Louisiana--State Offshore Coalbed Methane Proved Reserves ...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana--State Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

15

,"Lower 48 Federal Offshore Coalbed Methane Proved Reserves ...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

16

,"Texas--State Offshore Coalbed Methane Proved Reserves (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Texas--State Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

17

,"Louisiana (with State Offshore) Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

18

,"Federal Offshore--Texas Coalbed Methane Proved Reserves (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore--Texas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013...

19

,"Alaska (with Total Offshore) Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Alaska (with Total Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

20

Texas (with State Offshore) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Texas (with State Offshore) Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Louisiana (with State Offshore) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Louisiana (with State Offshore) Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

22

Alaska (with Total Offshore) Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Alaska Coalbed Methane Proved Reserves, Reserves...

23

Alaska (with Total Offshore) Coalbed Methane Proved Reserves...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Alaska Coalbed Methane Proved Reserves,...

24

Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's...

25

Coalbed Methane | Department of Energy  

Energy Savers (EERE)

Coalbed Methane Coalbed Methane Coalbed methane is natural gas found in coal deposits. It was once considered a nuisance and mine safety hazard, but today has become a valuable...

26

Coalbed Methane Production  

U.S. Energy Information Administration (EIA) Indexed Site

NA Not Available; W Withheld to avoid disclosure of individual company data. Notes: Coalbed Methane production data collected in conjunction with proved reserves data on Form...

27

,"Federal Offshore, Gulf of Mexico, Louisiana & Alabama Coalbed...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore, Gulf of Mexico, Louisiana & Alabama Coalbed Methane Proved Reserves, Reserves Changes, and...

28

The basics of coalbed methane  

SciTech Connect

The report is an overview of coalbed methane (CBM), also known as coal seam gas. It provides an overview of what coalbed methane is and the current status of global coalbed methane exploration and production. Topics covered in the report include: An analysis of the natural gas industry, including current and future production, consumption, and reserves; A detailed description of coalbed methane, its characteristics, and future potential; An analysis of the key business factors that are driving the increased interest in coalbed methane; An analysis of the barriers that are hindering the development of coalbed methane; An overview of the technologies used for coalbed methane production and water treatment; and Profiles of key coalbed methane producing countries. 25 figs., 5 tabs., 1 app.

NONE

2006-12-15T23:59:59.000Z

29

Coalbed Methane Proved Reserves  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2003 2004 2005 2006 2007 2008 View History U.S. 18,743 18,390 19,892 19,620 21,874 20,798 1989-2008 Alabama 1,665 1,900 1,773 2,068 2,126 1,727 1989-2008 Alaska 0 0 2007-2008 Arkansas 31 31 2007-2008 California 0 0 2007-2008 Colorado 6,473 5,787 6,772 6,344 7,869 8,238 1989-2008 Florida 0 0 2007-2008 Kansas 340 301 2007-2008 Kentucky 0 0 2007-2008 Louisiana 7 9 2007-2008 North 7 9 2007-2008 South Onshore 0 0 2007-2008 South Offshore 0 0 2007-2008 Michigan 0 0 2007-2008 Mississippi 0 0 2007-2008 Montana 66 75 2007-2008 New Mexico 4,396 5,166 5,249 4,894 4,169 3,991 1989-2008

30

Enhanced coalbed methane recovery  

SciTech Connect

The recovery of coalbed methane can be enhanced by injecting CO{sub 2} in the coal seam at supercritical conditions. Through an in situ adsorption/desorption process the displaced methane is produced and the adsorbed CO{sub 2} is permanently stored. This is called enhanced coalbed methane recovery (ECBM) and it is a technique under investigation as a possible approach to the geological storage of CO{sub 2} in a carbon dioxide capture and storage system. This work reviews the state of the art on fundamental and practical aspects of the technology and summarizes the results of ECBM field tests. These prove the feasibility of ECBM recovery and highlight substantial opportunities for interdisciplinary research at the interface between earth sciences and chemical engineering.

Mazzotti, M.; Pini, R.; Storti, G. [ETH, Zurich (Switzerland). Inst. of Process Engineering

2009-01-15T23:59:59.000Z

31

Ohio Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Ohio Coalbed Methane Proved Reserves, Reserves...

32

Florida Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Florida Coalbed Methane Proved Reserves, Reserves...

33

Michigan Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Michigan Coalbed Methane Proved Reserves, Reserves...

34

Method of coalbed methane production  

SciTech Connect

This patent describes a method for producing coalbed methane from a coal seam containing coalbed methane and penetrated by at least one injection well and at least one producing well. It comprises: injecting an inert gas through the injection well and into the coal seam. The inert gas being a gas that does not react with the coal under conditions of use and that does not significantly adsorb to the coal; and producing a gas from the production well which consists essentially of the inert gas, coalbed methane, or mixtures thereof.

Puri, R.; Stein, M.H.

1989-11-28T23:59:59.000Z

35

Miscellaneous States Coalbed Methane Proved Reserves (Billion...  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Miscellaneous States Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

36

coalbed methane | OpenEI  

Open Energy Info (EERE)

coalbed methane coalbed methane Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations Source NREL Date Released April 30th, 2005 (9 years ago) Date Updated November 07th, 2007 (7 years ago) Keywords coalbed methane GEF Kenya NREL SWERA TMY UNEP Data application/zip icon Download Data (zip, 5.4 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

37

Texas--RRC District 9 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 9 Coalbed Methane Proved Reserves,...

38

North Dakota Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 North Dakota Coalbed Methane Proved...

39

Texas--RRC District 6 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 6 Coalbed Methane Proved Reserves,...

40

California (with State off) Coalbed Methane Proved Reserves ...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 California Coalbed Methane Proved Reserves,...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Texas--RRC District 1 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 1 Coalbed Methane Proved Reserves,...

42

Michigan Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Michigan Coalbed Methane Proved Reserves,...

43

Other States Natural Gas Coalbed Methane, Reserves Based Production...  

Gasoline and Diesel Fuel Update (EIA)

Other States Natural Gas Coalbed Methane, Reserves Based Production (Billion Cubic Feet) Other States Natural Gas Coalbed Methane, Reserves Based Production (Billion Cubic Feet)...

44

California (with State off) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production California Coalbed Methane Proved Reserves, Reserves...

45

Louisiana--South Onshore Coalbed Methane Proved Reserves (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 LA, South Onshore Coalbed Methane Proved...

46

New York Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production New York Coalbed Methane Proved Reserves, Reserves...

47

Texas--RRC District 5 Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 5 Coalbed Methane Proved...

48

Texas--RRC District 1 Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 1 Coalbed Methane Proved...

49

North Dakota Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production North Dakota Coalbed Methane Proved Reserves,...

50

Mississippi (with State off) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Mississippi Coalbed Methane Proved Reserves, Reserves...

51

Louisiana--South Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production LA, South Onshore Coalbed Methane Proved Reserves,...

52

Mississippi (with State off) Coalbed Methane Proved Reserves...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Mississippi Coalbed Methane Proved Reserves,...

53

Texas--RRC District 8 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 8 Coalbed Methane Proved Reserves,...

54

Miscellaneous States Coalbed Methane Proved Reserves Revision...  

U.S. Energy Information Administration (EIA) Indexed Site

Revision Decreases (Billion Cubic Feet) Miscellaneous States Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

55

,"Colorado Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

56

,"Arkansas Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

57

,"Wyoming Coalbed Methane Proved Reserves, Reserves Changes,...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Wyoming Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

58

,"Miscellaneous States Coalbed Methane Proved Reserves (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

59

A guide to coalbed methane operations  

SciTech Connect

A guide to coalbed methane production is presented. The guide provides practical information on siting, drilling, completing, and producing coalbed methane wells. Information is presented for experienced coalbed methane producers and coalbed methane operations. The information will assist in making informed decisions about producing this resource. The information is presented in nine chapters on selecting and preparing of field site, drilling and casing the wellbore, wireline logging, completing the well, fracturing coal seams, selecting production equipment and facilities, operating wells and production equipment, treating and disposing of produced water, and testing the well.

Hollub, V.A.; Schafer, P.S.

1992-01-01T23:59:59.000Z

60

,"Montana Coalbed Methane Proved Reserves, Reserves Changes,...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Montana Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

,"Oklahoma Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Oklahoma Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

62

,"Pennsylvania Coalbed Methane Proved Reserves (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Pennsylvania Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

63

,"Virginia Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Virginia Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

64

CO2 Sequestration Enhances Coalbed Methane Production.  

E-Print Network (OSTI)

??Since 1980s, petroleum engineers and geologists have conducted researches on Enhanced Coalbed Methane Recovery (ECBM). During this period, many methods are introduced to enhance the… (more)

Pang, Yu

2013-01-01T23:59:59.000Z

65

,"Pennsylvania Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Pennsylvania Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

66

,"Miscellaneous Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

67

,"Alabama Coalbed Methane Proved Reserves, Reserves Changes,...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Alabama Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

68

,"California - Coastal Region Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

69

Coalbed methane gains viability  

SciTech Connect

In recent government studies, the Department of Energy (DOE) states that coal bed methane can be produced economically by using recovery systems that maximize return on investment rather than a system to produce a single coal seam just prior to mining. DOE suggests that the cost of recovering coal bed methane can be substantially reduced by increasing well spacing and employing multizone production if possible. Created as a by-product during the formation of coal, methane frequently is trapped in coal beds and associated strata. Estimates of total US methane contained in coal beds range from 260 to 860 TCF. The Pittsburgh seam in the N. Appalachia basin has estimates of 0.6 to 4 TCF alone. With current technology, DOE thinks that approximately 300 TCF of coal bed methane can be extracted from coal beds.

Not Available

1981-08-01T23:59:59.000Z

70

The 1991 coalbed methane symposium proceedings  

SciTech Connect

The proceedings of the 1991 coalbed methane symposium are presented. The proceedings contains 50 papers on environmental aspects of recovering methane from coal seams, reservoir characterization and testing mine safety and productivity, coalbed stimulation, geology and resource assessment, well completion and production technologies, reservoir modeling and case histories, and resources and technology.

Not Available

1991-01-01T23:59:59.000Z

71

Coalbed Methane Estimated Production  

Gasoline and Diesel Fuel Update (EIA)

1,966 1,914 1,886 1,763 1,655 1,466 1989-2013 Federal Offshore U.S. 0 0 0 0 0 0 2005-2013 Pacific (California) 0 0 0 0 0 0 2005-2013 Gulf of Mexico (Louisiana & Alabama) 0 0 0 0 0...

72

Coalbed Methane Reserves Acquisitions  

Gasoline and Diesel Fuel Update (EIA)

24 226 1,710 2009-2011 24 226 1,710 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 24 226 1,710 2009-2011 Alabama 0 151 219 2009-2011 Arkansas 22 0 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 0 0 1,021 2009-2011 Florida 0 0 0 2009-2011 Kansas 0 0 0 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana

73

Coalbed Methane Reserves Adjustments  

Gasoline and Diesel Fuel Update (EIA)

-14 784 -15 2009-2011 -14 784 -15 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States -14 784 -15 2009-2011 Alabama 0 61 -45 2009-2011 Arkansas 0 1 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 0 106 73 2009-2011 Florida 0 0 0 2009-2011 Kansas -3 -22 -6 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana

74

Coalbed Methane Reserves Sales  

Gasoline and Diesel Fuel Update (EIA)

08 366 1,775 2009-2011 08 366 1,775 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 208 366 1,775 2009-2011 Alabama 2 266 104 2009-2011 Arkansas 31 0 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 0 0 1,034 2009-2011 Florida 0 0 0 2009-2011 Kansas 0 0 0 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 8 0 0 2009-2011 North 8 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana

75

Coalbed Methane Reserves Extensions  

Gasoline and Diesel Fuel Update (EIA)

724 497 736 2009-2011 724 497 736 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 724 497 736 2009-2011 Alabama 21 29 3 2009-2011 Arkansas 0 0 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 48 184 220 2009-2011 Florida 0 0 0 2009-2011 Kansas 7 1 3 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana 3 3 0 2009-2011

76

Coalbed Methane Reserves Acquisitions  

Gasoline and Diesel Fuel Update (EIA)

24 226 1,710 2009-2011 24 226 1,710 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 24 226 1,710 2009-2011 Alabama 0 151 219 2009-2011 Arkansas 22 0 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 0 0 1,021 2009-2011 Florida 0 0 0 2009-2011 Kansas 0 0 0 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana

77

WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS.  

E-Print Network (OSTI)

??WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS Applications of waterjeting to drill horizontal wells for the purpose of degassing coalbeds prior to mining… (more)

Funmilayo, Gbenga M.

2010-01-01T23:59:59.000Z

78

Virginia Coalbed Methane Proved Reserves Extensions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

79

Oklahoma Coalbed Methane Proved Reserves Extensions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

80

Montana Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

Production (Billion Cubic Feet) Montana Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 12 12 13...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Virginia Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Virginia Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 56 81...

82

Pennsylvania Coalbed Methane Proved Reserves Revision Decreases...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

83

Colorado Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

Production (Billion Cubic Feet) Colorado Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 12...

84

Alabama Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Alabama Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 23...

85

Wyoming Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Wyoming Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 133 278...

86

Virginia Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

87

Arkansas Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

88

Kansas Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

Production (Billion Cubic Feet) Kansas Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 17 25 38...

89

Colorado Coalbed Methane Proved Reserves Revision Increases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

90

Oklahoma Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

Production (Billion Cubic Feet) Oklahoma Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 58 68...

91

Arkansas Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Arkansas Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 2 3 3 3...

92

Pennsylvania Coalbed Methane Proved Reserves Revision Increases...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

93

Virginia Coalbed Methane Proved Reserves Revision Decreases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

94

Colorado Coalbed Methane Proved Reserves Extensions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

95

Oklahoma Coalbed Methane Proved Reserves Revision Decreases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

96

Montana Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Montana Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

97

Wyoming Coalbed Methane Proved Reserves Acquisitions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Acquisitions (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

98

Utah Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Utah Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 74 83 103...

99

Wyoming Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

100

Arkansas Coalbed Methane Proved Reserves Revision Increases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Oklahoma Coalbed Methane Proved Reserves Revision Increases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

102

Miscellaneous States Coalbed Methane Proved Reserves Adjustments...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Miscellaneous States Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

103

Pennsylvania Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Pennsylvania Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 3 5...

104

Oklahoma Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

105

Pennsylvania Coalbed Methane Proved Reserves Extensions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

106

Colorado Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

107

Arkansas Coalbed Methane Proved Reserves Acquisitions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Acquisitions (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

108

Colorado Coalbed Methane Proved Reserves Acquisitions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Acquisitions (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

109

Oklahoma Coalbed Methane Proved Reserves Acquisitions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Acquisitions (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

110

Colorado Coalbed Methane Proved Reserves Revision Decreases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

111

Arkansas Coalbed Methane Proved Reserves Revision Decreases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

112

Virginia Coalbed Methane Proved Reserves Revision Increases ...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

113

Pennsylvania Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

114

Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

115

U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet)  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

116

Louisiana--North Coalbed Methane Proved Reserves (Billion Cubic...  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Louisiana--North Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

117

Texas--RRC District 4 Onshore Coalbed Methane Proved Reserves...  

Gasoline and Diesel Fuel Update (EIA)

4 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas--RRC District 4 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3...

118

Texas--RRC District 2 Onshore Coalbed Methane Proved Reserves...  

Annual Energy Outlook 2012 (EIA)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas--RRC District 2 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

119

Eastern States Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Methane Production (Billion Cubic Feet) Eastern States Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

120

Western States Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Western States Coalbed Methane Production (Billion Cubic Feet) Western States Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Texas--RRC District 10 Coalbed Methane Proved Reserves (Billion...  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas--RRC District 10 Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

122

Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet)  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

123

Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet...  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

124

Prediction of coalbed methane reservoir performance with type curves.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists of methane production from the coal seams. CBM reservoirs are dual-porosity systems that are characterized by… (more)

Bhavsar, Amol Bhaskar.

2005-01-01T23:59:59.000Z

125

The Optimization of Well Spacing in a Coalbed Methane Reservoir.  

E-Print Network (OSTI)

??Numerical reservoir simulation has been used to describe mechanism of methane gas desorption process, diffusion process, and fluid flow in a coalbed methane reservoir. The… (more)

Sinurat, Pahala Dominicus

2012-01-01T23:59:59.000Z

126

Development of gas production type curves for coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists on methane production from the coal seams. The unique coal characteristic results in a dual-porosity system.… (more)

Garcia Arenas, Anangela.

2004-01-01T23:59:59.000Z

127

Development of water production type curves for horizontal wells in coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists of methane production from the coal seams. The key parameters for the evaluation of coalbed methane… (more)

Burka Narayana, Praveen Kumar.

2007-01-01T23:59:59.000Z

128

Tool to predict the production performance of vertical wells in a coalbed methane reservoir.  

E-Print Network (OSTI)

??Coalbed Methane (CBM) is an unconventional gas resource that consists of methane production from coal seams. Coalbed Methane gas production is controlled be interactions of… (more)

Enoh, Michael E.

2007-01-01T23:59:59.000Z

129

,"Federal Offshore, Gulf of Mexico, Louisiana & Alabama Coalbed...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

130

Development of a Series of National Coalbed Methane Databases  

E-Print Network (OSTI)

Development of a Series of National Coalbed Methane Databases Mohaghegh, S. D., Nunsavathu, U Growing Interest in Coalbed Methane ­ Elevated natural gas prices ­ Demand for clean energy sources DatabaseDatabase One Location Reservoir & Sorption Collection ­ 126 Coalbed Areas ­ 34 Parameters Ordered

Mohaghegh, Shahab

131

California - Coastal Region Coalbed Methane Proved Reserves ...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

132

Texas--RRC District 8A Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 8A Coalbed Methane Proved Reserves,...

133

Texas--RRC District 8A Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 8A Coalbed Methane Proved...

134

Texas--RRC District 7C Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 7C Coalbed Methane Proved Reserves,...

135

Texas--RRC District 7B Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 7B Coalbed Methane Proved...

136

Texas--RRC District 7B Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 7B Coalbed Methane Proved Reserves,...

137

,"New Mexico Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2012,"6...

138

,"New York Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New York Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

139

,"Kansas Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Kansas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

140

,"North Louisiana Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

,"Louisiana--South Onshore Coalbed Methane Proved Reserves (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

142

,"Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

143

,"Ohio Coalbed Methane Proved Reserves, Reserves Changes, and...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Ohio Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2010,"630...

144

,"Montana Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Montana Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

145

,"U.S. Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

146

,"Michigan Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

147

Ohio Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

W Withheld to avoid disclosure of individual company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Reserves Revision Increases...

148

,"Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet)"  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2010 ,"Release...

149

Ohio Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Available; W Withheld to avoid disclosure of individual company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Reserves Adjustments...

150

,"Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

151

,"U.S. Coalbed Methane Proved Reserves New Field Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet)",1,"Annual",201...

152

,"Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

153

,"Kansas Coalbed Methane Proved Reserves, Reserves Changes, and...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Kansas Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

154

Oklahoma Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0...

155

,"Louisiana--North Coalbed Methane Proved Reserves (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

156

,"NM, West Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

157

,"U.S. Coalbed Methane Production (Billion Cubic Feet)"  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Production (Billion Cubic Feet)",1,"Annual",2013 ,"Release Date:","124...

158

,"Florida Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

159

,"U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic...

160

,"Utah Coalbed Methane Proved Reserves (Billion Cubic Feet)"  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Utah Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

,"West Virginia Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","West Virginia Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

162

,"New Mexico Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

163

,"Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

164

,"TX, RRC District 2 Onshore Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

165

,"Oklahoma Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Oklahoma Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

166

,"U.S. Coalbed Methane Proved Reserves, Reserves Changes, and...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

167

,"U.S. Coalbed Methane Proved Reserves Acquisitions (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet)",1,"Annual",2013...

168

Wyoming Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0...

169

,"North Dakota Coalbed Methane Proved Reserves (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

170

,"Wyoming Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Wyoming Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

171

,"U.S. Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet)",1,"Annual",2013...

172

,"U.S. Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet)",1,"Annual",2013...

173

,"Utah Coalbed Methane Proved Reserves, Reserves Changes, and...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Utah Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

174

,"TX, RRC District 10 Coalbed Methane Proved Reserves, Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

175

,"Lower 48 States Coalbed Methane Proved Reserves (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

176

,"TX, RRC District 4 Onshore Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

177

,"NM, East Coalbed Methane Proved Reserves, Reserves Changes...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

178

,"TX, RRC District 3 Onshore Coalbed Methane Proved Reserves...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

179

,"Texas Coalbed Methane Proved Reserves, Reserves Changes, and...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

180

,"U.S. Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet)",1,"Annual",2013...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

,"U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet)"  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

182

Utah Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1...

183

,"West Virginia Coalbed Methane Proved Reserves (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","West Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

184

Water production in enhanced coalbed methane operations  

Science Journals Connector (OSTI)

Coalbed methane (CBM) formations provides a considerable amount of the US natural gas production and have the potential of storing significant amounts of carbon dioxide (CO2) through enhanced gas recovery operations. Enhanced coalbed methane (ECBM) recovery by injection of CO2 or a mixture of CO2 and nitrogen (N2) has been proven to recover additional natural gas resources. However, since coalbeds are normally saturated with water and can be in communication with an aquifer, a large amount of water is often co-produced during the natural gas extraction. The conventional approach for CBM production relies on the reduction of the gas partial pressure in the coal seam. This can be accomplished by either pumping the formation water to the surface and/or by injecting gases such as N2 and CO2. Disposal of the produced water is an environmental challenge as harmful impurities must be removed by appropriate purification techniques. Consequently, a reduction of water production in CBM operations is desirable. In this paper we present a numerical investigation of the potential reduction in water production during ECBM operations that are commonly used to increase methane (CH4) recovery. We use a three-dimensional coalbed model with an aquifer located at the bottom to investigate the amounts of gas and water produced in ECBM operations per volume of coal seam as a function of aquifer strength and sorption characteristics including sorption induced strain. The amount of gas/water that is produced varies significantly depending on the aquifer strength and injection gas composition. We demonstrate that injection of CO2 and/or N2 in some settings reduces the water handling problem substantially. CBM is an important worldwide energy source with a large number of formations being excellent candidates for ECBM recovery processes. Our analysis of the interplay between coal characteristics, aquifer support and the resultant behavior in terms of gas/water production provides valuable input for optimization of future planning and operations.

M. Jamshidi; K. Jessen

2012-01-01T23:59:59.000Z

185

Coalbed Methane Reserves Revision Decreases  

Gasoline and Diesel Fuel Update (EIA)

2,486 2,914 1,668 2009-2011 2,486 2,914 1,668 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 2,486 2,914 1,668 2009-2011 Alabama 316 51 86 2009-2011 Arkansas 0 1 3 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 566 1,557 367 2009-2011 Florida 0 0 0 2009-2011 Kansas 107 0 14 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011

186

Coalbed Methane New Field Discoveries  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 2009-2011 0 0 0 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 0 0 0 2009-2011 Alabama 0 0 0 2009-2011 Arkansas 0 0 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 0 0 0 2009-2011 Florida 0 0 0 2009-2011 Kansas 0 0 0 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana 0 0 0 2009-2011 New Mexico

187

Coalbed Methane New Field Discoveries  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 2009-2011 0 0 0 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 0 0 0 2009-2011 Alabama 0 0 0 2009-2011 Arkansas 0 0 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 0 0 0 2009-2011 Florida 0 0 0 2009-2011 Kansas 0 0 0 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011 Montana 0 0 0 2009-2011 New Mexico

188

Coalbed Methane Reserves Revision Increases  

Gasoline and Diesel Fuel Update (EIA)

1,563 2,589 2,071 2009-2011 1,563 2,589 2,071 2009-2011 Federal Offshore U.S. 0 0 0 2009-2011 Pacific (California) 0 0 0 2009-2011 Louisiana & Alabama 0 0 0 2009-2011 Texas 0 0 0 2009-2011 Alaska 0 0 0 2009-2011 Lower 48 States 1,563 2,589 2,071 2009-2011 Alabama 17 134 23 2009-2011 Arkansas 3 9 0 2009-2011 California 0 0 0 2009-2011 Coastal Region Onshore 0 0 0 2009-2011 Los Angeles Basin Onshore 0 0 0 2009-2011 San Joaquin Basin Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Colorado 126 937 698 2009-2011 Florida 0 0 0 2009-2011 Kansas 8 157 24 2009-2011 Kentucky 0 0 0 2009-2011 Louisiana 0 0 0 2009-2011 North 0 0 0 2009-2011 South Onshore 0 0 0 2009-2011 State Offshore 0 0 0 2009-2011 Michigan 0 0 0 2009-2011 Mississippi 0 0 0 2009-2011

189

Enhancement of Biogenic Coalbed Methane Production and Back Injection of Coalbed Methane Co-Produced Water  

SciTech Connect

Biogenic methane is a common constituent in deep subsurface environments such as coalbeds and oil shale beds. Coalbed methane (CBM) makes significant contributions to world natural gas industry and CBM production continues to increase. With increasing CBM production, the production of CBM co-produced water increases, which is an environmental concern. This study investigated the feasibility in re-using CBM co-produced water and other high sodic/saline water to enhance biogenic methane production from coal and other unconventional sources, such as oil shale. Microcosms were established with the selected carbon sources which included coal, oil shale, lignite, peat, and diesel-contaminated soil. Each microcosm contained either CBM coproduced water or groundwater with various enhancement and inhibitor combinations. Results indicated that the addition of nutrients and nutrients with additional carbon can enhance biogenic methane production from coal and oil shale. Methane production from oil shale was much greater than that from coal, which is possibly due to the greater amount of available Dissolved Organic Carbon (DOC) from oil shale. Inconclusive results were observed from the other sources since the incubation period was too low. WRI is continuing studies with biogenic methane production from oil shale.

Song Jin

2007-05-31T23:59:59.000Z

190

NETL: News Release - DOE Study Raises Estimates of Coalbed Methane  

NLE Websites -- All DOE Office Websites (Extended Search)

December 16, 2002 December 16, 2002 DOE Study Raises Estimates of Coalbed Methane Potential in Powder River Basin Actual Production Will Hinge on Water Disposal Method WASHINGTON, DC - The Powder River Basin, a vast region of high plains in Wyoming and Montana known for producing low-sulfur coal, is also becoming a primary source of America's fastest growing natural gas resource, coalbed methane. Now, a new Department of Energy report projects that the region may hold more coalbed methane than previously estimated but the amount that will actually be produced will depend largely on the choice of the water disposal method. MORE INFO Download report [7.35MB PDF] The study, Powder River Basin Coalbed Methane Development and Produced Water Management Study, was prepared by Advanced Resources International of

191

U.S. Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

Extensions (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

192

West Virginia Coalbed Methane Proved Reserves (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

Proved Reserves (Billion Cubic Feet) West Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

193

Lower 48 States Coalbed Methane Proved Reserves (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

Proved Reserves (Billion Cubic Feet) Lower 48 States Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

194

Oklahoma Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

Proved Reserves (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

195

Lower 48 States Coalbed Methane Production (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Lower 48 States Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's...

196

Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

(Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 30 34 31 31...

197

U.S. Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

Production (Billion Cubic Feet) U.S. Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 91 1990's...

198

Wyoming Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

199

Utah Coalbed Methane Proved Reserves (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Proved Reserves (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's...

200

New Mexico Coalbed Methane Proved Reserves Revision Decreases...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) New Mexico Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

New Mexico Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) New Mexico Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

202

Montana Coalbed Methane Proved Reserves (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Proved Reserves (Billion Cubic Feet) Montana Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

203

U.S. Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

Adjustments (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

204

West Virginia Coalbed Methane Production (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Production (Billion Cubic Feet) West Virginia Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 30...

205

Kansas Coalbed Methane Proved Reserves (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

(Billion Cubic Feet) Kansas Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 257 234 340 301...

206

West Virginia Coalbed Methane Proved Reserves Adjustments (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) West Virginia Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

207

Oklahoma Coalbed Methane Proved Reserves Sales (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 6...

208

U.S. Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

209

Kansas Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Kansas Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

210

Pennsylvania Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Proved Reserves (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

211

Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

Proved Reserves (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

212

U.S. Coalbed Methane Proved Reserves Acquisitions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Acquisitions (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

213

U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1...

214

Texas--RRC District 3 Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Texas--RRC District 3 Onshore Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

215

Montana Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Montana Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

216

New Mexico Coalbed Methane Proved Reserves New Field Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 0 0 - ...

217

Texas--RRC District 3 Onshore Coalbed Methane Proved Reserves...  

Annual Energy Outlook 2012 (EIA)

Proved Reserves (Billion Cubic Feet) Texas--RRC District 3 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

218

Utah Coalbed Methane Proved Reserves New Field Discoveries (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 0 0 - ...

219

Utah Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

220

Texas--RRC District 10 Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Texas--RRC District 10 Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Louisiana--North Coalbed Methane Proved Reserves Sales (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Louisiana--North Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

222

U.S. Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

223

Louisiana--North Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Louisiana--North Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's...

224

Utah Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

225

Ohio Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Revision Decreases (Billion Cubic Feet) Ohio Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

226

Kansas Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Kansas Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

227

Wyoming Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

228

Utah Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Adjustments (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

229

Utah Coalbed Methane Proved Reserves Acquisitions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Acquisitions (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

230

New Mexico Coalbed Methane Proved Reserves Revision Increases...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) New Mexico Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

231

Kansas Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Kansas Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

232

West Virginia Coalbed Methane Proved Reserves Revision Increases...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) West Virginia Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

233

Wyoming Coalbed Methane Proved Reserves New Field Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 0 0 - ...

234

Montana Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Montana Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

235

Wyoming Coalbed Methane Proved Reserves (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA) Indexed Site

(Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 1,540 2,297...

236

Wyoming Coalbed Methane Proved Reserves Revision Increases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Increases (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

237

Pennsylvania Coalbed Methane Proved Reserves Sales (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

238

Wyoming Coalbed Methane Proved Reserves Sales (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's...

239

Oklahoma Coalbed Methane Proved Reserves New Field Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Oklahoma Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0...

240

Kansas Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Kansas Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Utah Coalbed Methane Proved Reserves Revision Decreases (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

242

Montana Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Extensions (Billion Cubic Feet) Montana Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

243

West Virginia Coalbed Methane Proved Reserves Revision Decreases...  

U.S. Energy Information Administration (EIA) Indexed Site

Decreases (Billion Cubic Feet) West Virginia Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

244

Colorado Coalbed Methane Proved Reserves Sales (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0...

245

Arkansas Coalbed Methane Proved Reserves Sales (Billion Cubic...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's...

246

Utah Coalbed Methane Proved Reserves Sales (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Sales (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0...

247

Coalbed methane produced water in China: status and environmental issues  

Science Journals Connector (OSTI)

As one of the unconventional natural gas family members, coalbed methane (CBM) receives great attention throughout the world. The major associated problem of CBM production is the management of produced water. In...

Yanjun Meng; Dazhen Tang; Hao Xu; Yong Li…

2014-06-01T23:59:59.000Z

248

Proceedings of the international coalbed methane symposium. Volume 2  

SciTech Connect

Volume 2 contains 36 papers divided among the following sessions: Resources/development potential; Mine safety and productivity issues; Reservoir characterization, modeling, and well testing; and a Poster session whose papers discuss coal geology, well completion methods, origin of coalbed methane, rock mechanics of coal seams, geologic fractures in coal seams, and the use of coalbed methane for mitigation of greenhouse gases. All papers have been processed for inclusion on the data base.

NONE

1993-09-01T23:59:59.000Z

249

The Optimization of Well Spacing in a Coalbed Methane Reservoir  

E-Print Network (OSTI)

THE OPTIMIZATION OF WELL SPACING IN A COALBED METHANE RESERVOIR A Thesis by PAHALA DOMINICUS SINURAT Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 2010 Major Subject: Petroleum Engineering THE OPTIMIZATION OF WELL SPACING IN A COALBED METHANE RESERVOIR A Thesis by PAHALA DOMINICUS SINURAT Submitted to the Office of Graduate Studies of Texas A...

Sinurat, Pahala Dominicus

2012-02-14T23:59:59.000Z

250

NETL: Oil & Natural Gas Technologies Reference Shelf - Coalbed Methane  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Production and Reclamation Field Tour Coalbed Methane Production and Reclamation Field Tour Coalbed Methane Production and Reclamation Field Tour Author: John Wheaton, Montana Tech of the University of Montana, Butte, MT. Venue: The tour will be conducted starting in Gillette, WY, and extend along the northern Powder River Basin, on June 3, 2007, under the auspices of the American Society for Mining and Reclamation (http://ces.ca.uky.edu/asmr/ [external site]). Abstract: This field tour will emphasize successful reclamation in an alternative type of coal industry in the Powder River Basin: coalbed methane. The tour will leave Gillette, WY, at 7:30 a.m., Sunday, June 3, 2007, and travel to Sheridan, WY, and back, touring coalbed methane production areas. Stops will include active drilling and producing areas to learn about the footprint and approach to development of coalbed methane. Reclamation includes drilling pads and linear trenching for water and gas pipelines. Produced-water management is a major expense and concern. Among the water management options we plan to see are stock-watering facilities, infiltration ponds, irrigation sites, and water treatment facilities. A landowner will join us and be able to answer questions from the ranching perspective for part of the tour. Lunches are included in the price of the tour.

251

Coalbed methane resource potential of the Piceance Basin, northwestern Colorado  

SciTech Connect

As predicted, from an evolving coalbed methane producibility model, prolific coalbed methane production is precluded in the Piceance Basin by the absence of coal bed reservoir continuity and dynamic ground-water flow. The best potential for production may lie at the transition zone from hydropressure to hydrocarbon overpressure and/or in conventional traps basinward of where outcrop and subsurface coals are in good reservoir and hydraulic communication. Geologic and hydrologic synergy among tectonic and structural setting, depositional systems and coal distribution, coal rank, gas content, permeability and hydrodynamics are the controls that determine the coalbed methane resource potential of the Piceance Basin. Within the coal-bearing Upper Cretaceous Williams Fork Formation, the prime coalbed methane target, reservoir heterogeneity and thrust faults cause coal beds along the Grand Hogback and in the subsurface to be in modest to poor reservoir and hydraulic communication, restricting meteoric ground water recharge and basinward flow. Total subsurface coalbed methane resources are still estimated to be approximately 99 Tcf (3.09 Tm{sup 3}), although coalbed methane resource estimates range between 80 (2.49 Tm{sup 3}) and 136 Tcf (4.24 Tm{sup 3}), depending on the calculation method used. To explore for high gas contents or fully gas-saturated coals and consequent high productivity in the Piceance Basin, improved geologic and completion technologies including exploration and development for migrated conventionally and hydrodynamically trapped gases, in-situ generated secondary biogenic gases, and solution gases will be required.

Tyler, R.; Scott, A.R.; Kaiser, W.R. [Univ. of Texas, Austin, TX (United States)

1996-06-01T23:59:59.000Z

252

Exploiting coalbed methane and protecting the global environment  

SciTech Connect

The global climate change caused by greenhouse gases (GHGs) emission has received wide attention from all countries in the world. Global environmental protection as a common problem has confronted the human being. As a main component of coalbed methane, methane is an important factor influencing the production safety of coal mine and threatens the lives of miners. The recent research on environment science shows that methane is a very harmful GHG. Although methane gas has very little proportion in the GHGs emission and its stayed period is also very short, it has very obvious impact on the climate change. From the estimation, methane emission in the coal-mining process is only 10% of the total emission from human`s activities. As a clean energy, Methane has mature recovery technique before, during and after the process of mining. Thus, coalbed methane is the sole GHG generated in the human`s activities and being possible to be reclaimed and utilized. Compared with the global greenhouse effect of other GHGs emission abatement, coalbed methane emission abatement can be done in very low cost with many other benefits: (1) to protect global environment; (2) to improve obviously the safety of coal mine; and (3) to obtain a new kind of clean energy. Coal is the main energy in China, and coalbed contains very rich methane. According to the exploration result in recent years, about 30000{approximately}35000 billion m{sup 2} methane is contained in the coalbed below 2000 m in depth. China has formed a good development base in the field of reclamation and utilization of coalbed methane. The author hopes that wider international technical exchange and cooperation in the field will be carried out.

Yuheng, Gao

1996-12-31T23:59:59.000Z

253

Coalbed methane production potential in U. S. basins  

SciTech Connect

The major emphasis of the U.S. DOE's coalbed methane research has been on estimating the magnitude of the resource and developing systems for recovery. Methane resource estimates for 16 basins show that the greatest potential is in the Piceance, Northern Appalachian, Central Appalachian, Powder River, and Greater Green River coal basins. Small, high-potential target areas have been selected for in-depth analysis of the resource. Industry interest is greatest in the Warrior, San Juan, Piceance, Raton Mesa, and Northern and Central Appalachian basins. Production curves for several coalbed methane wells in these basins are included.

Byer, C.W.; Mroz, T.H.; Covatch, G.L.

1987-07-01T23:59:59.000Z

254

WATER QUALITY CHANGES AS A RESULT OF COALBED METHANE DEVELOPMENT IN A ROCKY MOUNTAIN WATERSHED1  

E-Print Network (OSTI)

WATER QUALITY CHANGES AS A RESULT OF COALBED METHANE DEVELOPMENT IN A ROCKY MOUNTAIN WATERSHED1 Xixi Wang, Assefa M. Melesse, Michael E. McClain, and Wanhong Yang2 ABSTRACT: Coalbed methane (CBM the Powder River. (KEY TERMS: coalbed methane, produced water; Montana; natural gas; pattern analysis

McClain, Michael

255

Development of gas production type curves for horizontal wells in coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists of methane production from coal seams .The unique difference between CBM and conventional gas reservoirs is… (more)

Nfonsam, Allen Ekahnzok.

2006-01-01T23:59:59.000Z

256

Dewatering of coalbed methane wells with hydraulic gas pump  

SciTech Connect

The coalbed methane industry has become an important source of natural gas production. Proper dewatering of coalbed methane (CBM) wells is the key to efficient gas production from these reservoirs. This paper presents the Hydraulic Gas Pump as a new alternative dewatering system for CBM wells. The Hydraulic Gas Pump (HGP) concept offers several operational advantages for CBM wells. Gas interference does not affect its operation. It resists solids damage by eliminating the lift mechanism and reducing the number of moving parts. The HGP has a flexible production rate and is suitable for all production phases of CBM wells. It can also be designed as a wireline retrievable system. We conclude that the Hydraulic Gas Pump is a suitable dewatering system for coalbed methane wells.

Amani, M.; Juvkam-Wold, H.C. [Texas A& M Univ., College Station, TX (United States)

1995-12-31T23:59:59.000Z

257

Integrated process for coalbed brine and methane disposal  

SciTech Connect

This paper describes a technology and project to demonstrate and commercialize a brine disposal process for converting the brine stream of a coalbed gas producing site into clean water for agricultural use and dry solids that can be recycled for industrial consumption. The process also utilizes coalbed methane (CBM) released from coal mining for the combustion process thereby substantially reducing the potential for methane emissions to the atmosphere. The technology is ideally suited for the treatment and disposal of produced brines generated from the development of coal mines and coalbed methane resources worldwide. Over the next 10 to 15 years, market potential for brine elimination equipment and services is estimated to be in the range of $1 billion.

Byam, J.W. Jr.; Tait, J.H.; Brandt, H.

1996-12-31T23:59:59.000Z

258

Multicomponent 3-D characterization of a coalbed methane reservoir  

SciTech Connect

Methane is produced from fractured coalbed reservoirs at Cedar Hill Field in the San Juan Basin. Fracturing and local stress are critical to production because of the absence of matrix permeability in the coals. Knowledge of the direction of open fractures, the degree of fracturing, reservoir pressure, and compartmentalization is required to understand the flow of fluids through the reservoir. A multicomponent 3-D seismic survey was acquired to aid in coalbed methane reservoir characterization. Coalbed reservoir heterogeneities, including isolated pressure cells, zones of increased fracture density, and variable fracture directions, have been interpreted through the analysis of the multicomponent data and integration with petrophysical and reservoir engineering studies. Strike-slip faults, which compartmentalize the reservoir, have been identified by structural interpretation of the 3-D P-wave seismic data. These faults form boundaries for pressure cells that have been identified by P-wave reflection amplitude anomalies.

Shuck, E.L. [Advance Geophysical Corp., Englewood, CO (United States)] [Advance Geophysical Corp., Englewood, CO (United States); Davis, T.L.; Benson, R.D. [Colorado School of Mines, Golden, CO (United States). Geophysics Dept.] [Colorado School of Mines, Golden, CO (United States). Geophysics Dept.

1996-03-01T23:59:59.000Z

259

Texas--RRC District 8 Coalbed Methane Proved Reserves (Billion...  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

260

California - San Joaquin Basin Onshore Coalbed Methane Proved...  

Gasoline and Diesel Fuel Update (EIA)

San Joaquin Basin Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Texas--RRC District 9 Coalbed Methane Proved Reserves (Billion...  

NLE Websites -- All DOE Office Websites (Extended Search)

RRC District 9 Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - ...

262

Texas--RRC District 5 Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

5 Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data Reported;...

263

Florida Coalbed Methane Proved Reserves (Billion Cubic Feet)  

NLE Websites -- All DOE Office Websites (Extended Search)

Florida Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No...

264

Texas--RRC District 2 Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

2 Onshore Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

265

Texas--RRC District 6 Coalbed Methane Proved Reserves (Billion...  

NLE Websites -- All DOE Office Websites (Extended Search)

6 Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

266

New York Coalbed Methane Proved Reserves (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

267

Texas--RRC District 4 Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

4 Onshore Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

268

California - Los Angeles Basin Onshore Coalbed Methane Proved...  

Annual Energy Outlook 2012 (EIA)

Los Angeles Basin Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's...

269

Exploration strategies based on a coalbed methane producibility model  

SciTech Connect

Knowing geologic and hydrologic characteristics of a basin does not necessarily lead to a determination of its coalbed methane producibility because it is the synergy among key hydrogeologic controls that governs producibility. Detailed studies performed in the San Juan, Piceance, and Sand Wash Basins determined that the key hydrogeologic factors affecting producibility include depositional setting and coal distribution, tectonic and structural setting, coal rank and gas generation, hydrodynamics, permeability, and gas content. The conceptual model based on these factors provides a rationale for exploration and development strategies for unexplored areas or in basins having established or limited production. Exceptionally high productivity requires good permeability; thick, laterally continuous high-rank and high-gas-content coals; dynamic flow of ground water through those coals; generation of secondary biogenic gases; and migration and conventional trapping of thermogenic and biogenic gases. Higher coalbed methane producibility commonly occurs in areas of upward flow associated with permeability barriers (no-flow boundaries). Fluid migration across a large gathering area orthogonal to permeability barriers and/or in situ generation of secondary biogenic gases concentrate the coal gas, resulting in higher gas contents. Low coalbed methane production is typically associated with very low permeability systems; the absence of conventional or hydrodynamic traps; and thin, low-rank coals below the threshold of thermogenic gas generation. Production from relatively low-gas-content coals in highly permeable recharge areas may result in excessive water and limited coalbed methane production. Thus, high permeability can be as detrimental to coalbed methane producibility as is low permeability.

Scott, A.R.; Kaiser, W.R.; Hamilton, D.S.; Tyler, R.; Finley, R.J. [Univ. of Texas, Austin, TX (United States)

1996-12-31T23:59:59.000Z

270

Exploration strategies based on a coalbed methane producibility model  

SciTech Connect

Knowing geologic and hydrologic characteristics of a basin does not necessarily lead to a determination of its coalbed methane producibility because it is the synergy among key hydrogeologic controls that governs producibility. Detailed studies performed in the San Juan, Piceance, and Sand Wash Basins determined that the key hydrogeologic factors affecting producibility include depositional setting and coal distribution, tectonic and structural setting, coal rank and gas generation, hydrodynamics, permeability, and gas content. The conceptual model based on these factors provides a rationale for exploration and development strategies for unexplored areas or in basins having established or limited production. Exceptionally high productivity requires good permeability; thick, laterally continuous high-rank and high-gas-content coals; dynamic flow of ground water through those coals; generation of secondary biogenic gases; and migration and conventional trapping of thermogenic and biogenic gases. Higher coalbed methane producibility commonly occurs in areas of upward flow associated with permeability barriers (no-flow boundaries). Fluid migration across a large gathering area orthogonal to permeability barriers and/or in situ generation of secondary biogenic gases concentrate the coal gas, resulting in higher gas contents. Low coalbed methane production is typically associated with very low permeability systems; the absence of conventional or hydrodynamic traps; and thin, low-rank coals below the threshold of thermogenic gas generation. Production from relatively low-gas-content coals in highly permeable recharge areas may result in excessive water and limited coalbed methane production. Thus, high permeability can be as detrimental to coalbed methane producibility as is low permeability.

Scott, A.R.; Kaiser, W.R.; Hamilton, D.S.; Tyler, R.; Finley, R.J. (Univ. of Texas, Austin, TX (United States))

1996-01-01T23:59:59.000Z

271

,"U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production"  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves, Reserves Changes, and Production" Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2011,"6/30/1989" ,"Release Date:","8/1/2013" ,"Next Release Date:","8/1/2014" ,"Excel File Name:","ng_enr_coalbed_dcu_nus_a.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/ng/ng_enr_coalbed_dcu_nus_a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

272

The Application of Microhole Technology to the Development of Coalbed Methane Resources at Remote Locations  

E-Print Network (OSTI)

The Application of Microhole Technology to the Development of Coalbed Methane Resources at Remote technology to the development of coalbed methane (CBM) resources in remote, environmentally sensitive areas, or are immediately adjacent to, coal deposits that may be capable of methane production. These same communities pay

273

Coalbed methane producibility from the Mannville coals in Alberta, Canada: A comparison of two areas  

E-Print Network (OSTI)

Coalbed methane producibility from the Mannville coals in Alberta, Canada: A comparison of two wells drilled at Corbett Creek. Keywords: Coalbed methane; Mannville coals; Alberta; Petrology 71 TCF of methane, the Belly River Formation coals 147 TCF, and the Ardley Formation coals about 57

Paris-Sud XI, Université de

274

Preliminary resource assessment of coalbed methane in the United States  

SciTech Connect

Preliminary results of the DOE Methane Recovery from Coalbeds Project reveal that many of the coal regions in the United States have significant volumes of coalbed methane. These results show that 45 cooperative wells drilled to date have helped to update the estimates of methane in the various coal regions. The most promising coal region is in the Green River Basin where preliminary estimates show that the methane potential may be over 23 trillion cubic feet. Another area of considerable interest is in the Arkoma Basin where the methane content of coal samples ranged from 200 to 400 cubic feet per ton (cf/ton) of coal. The methane estimte in this basin is between 1.6 to 3.6 trillion cubic feet. The Piceance Creek coal region is an area presently generating considerable interest and industry activity. The methane content of the coal samples extracted from this basin averaged over 100 cf/ton. The Northern Appalachian region also shows considerable promise.

Not Available

1981-04-01T23:59:59.000Z

275

Parametric and predictive analysis of horizontal well configurations for coalbed methane reservoirs in Appalachian Basin.  

E-Print Network (OSTI)

??It has been a well-established fact that the Appalachian Basin represents a high potential region for the Coalbed Methane (CBM) production. The thin coal beds… (more)

Maricic, Nikola.

2004-01-01T23:59:59.000Z

276

,"U.S. Coalbed Methane Proved Reserves Sales (Billion Cubic Feet...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Sales (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

277

Impact of relative permeability on type curves for coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane (CBM) is considered an unconventional gas resource produced from coal seams usually with low permeability at shallow depths. Analyzing the production performance in… (more)

Lakshminarayanan, Sunil.

2006-01-01T23:59:59.000Z

278

Sensitivity analysis of modeling parameters that affect the dual peaking behaviour in coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane reservoir (CBM) performance is controlled by a complex set of reservoir, geologic, completion and operational parameters and the inter-relationships between those parameters. Therefore… (more)

Okeke, Amarachukwu Ngozi

2006-01-01T23:59:59.000Z

279

US COALBED METHANE The Past: Production The Present: Reserves  

U.S. Energy Information Administration (EIA) Indexed Site

Panel 2 of 2 Panel 2 of 2 US COALBED METHANE The Past: Production The Present: Reserves The Future: Resources Annual coalbed methane gas production data through 12/31/2006 was obtained from 17 state oil & gas regulatory entities or geological surv eys and one producing company. Data for 2006 were not yet av ailable for West Virginia and Pennsy lvania so the 2005 v olumes were assumed to repeat in 2006. Produced CBM gas v olumes from each state were clas sified by basin. The cumulative production pie chart to the left shows the sum of all reported CBM gas volumes by basin through 2006. The San Juan Bas in dominates the chart. The only other bas in to ex ceed 10% is the Pow der River Basin (12%). Relative cumulative production volumes by basin are spatially depicted in the c

280

Central-northern Appalachian coalbed methane flow grows  

SciTech Connect

Over the past decade in the US, coalbed methane (CBM) has become an increasingly important source of unconventional natural gas. The most significant CBM production occurs in the San Juan basin of Colorado and new Mexico and the Black Warrior basin of Alabama, which collective in 1995 accounted for about 94% of US CBM production. The paper discusses early CBM production, recent production, gas composition, undiscovered potential, and new exploration areas.

Lyons, P.C. [Geological Survey, Reston, VA (United States)

1997-07-07T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Coalbed methane exploration in the Lorraine Basin, France  

SciTech Connect

DuPont Conoco Hydrocarbures has been involved in a Coalbed Methane (CBM) project in France since 1991. Coalbed methane exploration differs noticeably in several aspects from conventional oil and gas exploration. This paper is divided in three parts and discusses some geological, reservoir and drilling considerations relevant to the exploration and appraisal of a coalbed methane prospect. The first part presents geological issues such as data collection and evaluation of its associated value, building expertise to create a geological and geophysical model integrating the work of a multidisciplinary team, and assessing uncertainties of the data interpretation. A short review of the basin activity, geological and tectonic setting, and environment aspects is presented in order to illustrate some CBM exploration issues. The second part describes a comprehensive coalbed methane reservoir data acquisition program incorporating coal sample optical and chemical analyses, gas sample chromatography, canister desorption, fracture density of coal cores, and measurement of in-situ coal permeability and bounding-strata stress. Field practical concerns are then discussed such as on-site and off-site canister desorption, gas sample collection, rapid estimation of gas content, ash content, total bed moisture, and finally well testing alternatives for permeability and rock stress determination. The third part reviews drilling issues such as drilling and coring options for core hole size and casing size, rig site equipment requirements for continuous coring operations, including mud treatment equipment, core handling material and core work stations, alliance of national and foreign drilling contractors to optimize equipment and experience, and finally overview of coring procedures to identify best practices for pending operations. The paper is derived from Conoco`s experience in CBM exploration in the Lorraine Basin, North East of France.

Michaud, B. [DuPont Conoco Hydrocarbures, Paris (France); Briens, F.; Girdler, D.

1995-08-01T23:59:59.000Z

282

Coalbed methane production enhancement by underground coal gasification  

SciTech Connect

The sub-surface of the Netherlands is generally underlain by coal-bearing Carboniferous strata at greater depths (at many places over 1,500 m). These coal seams are generally thinner than 3 meter, occur in groups (5--15) within several hundred meters and are often fairly continuous over many square kilometers. In many cases they have endured complex burial history, influencing their methane saturation. In certain particular geological settings, a high, maximum coalbed methane saturation, may be expected. Carboniferous/Permian coals in the Tianjin-region (China) show many similarities concerning geological settings, rank and composition. Economical coalbed methane production at greater depths is often obstructed by the (very) low permeabilities of the coal seams as with increasing depth the deformation of the coal reduces both its macro-porosity (the cleat system) and microporosity. Experiments in abandoned underground mines, as well as after underground coal gasification tests indicate ways to improve the prospects for coalbed methane production in originally tight coal reservoirs. High permeability areas can be created by the application of underground coal gasification of one of the coal seams of a multi-seam cycle with some 200 meter of coal bearing strata. The gasification of one of the coal seams transforms that seam over a certain area into a highly permeable bed, consisting of coal residues, ash and (thermally altered) roof rubble. Additionally, roof collapse and subsidence will destabilize the overburden. In conjunction this will permit a better coalbed methane production from the remaining surrounding parts of the coal seams. Moreover, the effects of subsidence will influence the stress patterns around the gasified seam and this improves the permeability over certain distances in the coal seams above and below. In this paper the effects of the combined underground coal gasification and coalbed methane production technique are regarded for a single injection well. Known geotechnical aspects are combined with results from laboratory experiments on compaction of thermally treated rubble. An axi-symmetric numerical model is used to determine the effects induced by the gasified coal seam. The calculation includes the rubble formation, rubble compaction and induced stress effects in the overlying strata. Subsequently the stress effects are related to changes in coal permeability, based on experimental results of McKee et al.

Hettema, M.H.H.; Wolf, K.H.A.A.; Neumann, B.V.

1997-12-31T23:59:59.000Z

283

State-of-the-art in coalbed methane drilling fluids  

SciTech Connect

The production of methane from wet coalbeds is often associated with the production of significant amounts of water. While producing water is necessary to desorb the methane from the coal, the damage from the drilling fluids used is difficult to assess, because the gas production follows weeks to months after the well is drilled. Commonly asked questions include the following: What are the important parameters for drilling an organic reservoir rock that is both the source and the trap for the methane? Has the drilling fluid affected the gas production? Are the cleats plugged? Does the 'filtercake' have an impact on the flow of water and gas? Are stimulation techniques compatible with the drilling fluids used? This paper describes the development of a unique drilling fluid to drill coalbed methane wells with a special emphasis on horizontal applications. The fluid design incorporates products to match the delicate surface chemistry on the coal, a matting system to provide both borehole stability and minimize fluid losses to the cleats, and a breaker method of removing the matting system once drilling is completed. This paper also discusses how coal geology impacts drilling planning, drilling practices, the choice of drilling fluid, and completion/stimulation techniques for Upper Cretaceous Mannville-type coals drilled within the Western Canadian Sedimentary Basin. A focus on horizontal coalbed methane (CBM) wells is presented. Field results from three horizontal wells are discussed, two of which were drilled with the new drilling fluid system. The wells demonstrated exceptional stability in coal for lengths to 1000 m, controlled drilling rates and ease of running slotted liners. Methods for, and results of, placing the breaker in the horizontal wells are covered in depth.

Baltoiu, L.V.; Warren, B.K.; Natras, T.A.

2008-09-15T23:59:59.000Z

284

Hydraulic fracturing accelerates coalbed methane recovery  

SciTech Connect

Methane production from deep coal seams that never will be mined requires hydraulic fracturing for faster, optimal recovery. Since this can be a complex process, proper formation evaluation beforehand is essential, according to this paper.

Holditch, S.A. (Texas A and M Univ. (US)); Ely, J.W.; Semmelbeck, M.E.; Carter, R.H. (S.A. Holditch and Associates (US)); Hinkel, J.J.; Jeffrey, R.G. Jr. (Dowell Schlumberger (US))

1990-11-01T23:59:59.000Z

285

Table 17. Coalbed methane proved reserves, reserves changes, and production, 201  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed methane proved reserves, reserves changes, and production, 2011" Coalbed methane proved reserves, reserves changes, and production, 2011" "billion cubic feet" ,,"Changes in Reserves During 2011" ,"Published",,,,,,,,"New Reservoir" ,"Proved",,"Revision","Revision",,,,"New Field","Discoveries","Estimated","Proved" ,"Reserves","Adjustments","Increases","Decreases","Sales","Acquisitions","Extensions","Discoveries","in Old Fields","Production","Reserves" "State and Subdivision",40543,"(+,-)","(+)","(-)","(-)","(+)","(+)","(+)","(+)","(-)",40908

286

Appalachian basin coal-bed methane: Elephant or flea  

SciTech Connect

Historically, interest in the Appalachian basin coal-bed methane resource extends at least over the last 50 years. The Northern and Central Appalachian basins are estimated to contain 61 tcf and 5 tcf of coal-bed methane gas, respectively. Development of this resource has not kept pace with that of other basins, such as the Black Warrior basin of Alabama of the San Juan basin of northern New Mexico and Colorado. Without the benefit of modern completion, stimulation, and production technology, some older Appalachian basin coal-bed methane wells were reported to have produced in excess of 150 used here to characterize some past projects and their results. This work is not intended to comprise a comprehensive survey of all Appalachian basin projects, but rather to provide background information from which to proceed for those who may be interested in doing so. Several constraints to the development of this resource have been identified, including conflicting legal rights of ownership of the gas produced from the coal seams when coal and conventional oil and gas rights are controlled by separate parties. In addition, large leaseholds have been difficult to acquire and finding costs have been high. However, the threshold of minimum economic production may be relatively low when compared with other areas, because low-pressures pipelines are available and gas prices are among the highest in the nation. Interest in the commercial development of the resource seems to be on the increase with several projects currently active and more reported to be planned for the near future.

Hunt, A.M. (Dames and Moore, Cincinnati, OH (United States))

1991-08-01T23:59:59.000Z

287

Unconventional gas resources. [Eastern Gas Shales, Western Gas Sands, Coalbed Methane, Methane from Geopressured Systems  

SciTech Connect

This document describes the program goals, research activities, and the role of the Federal Government in a strategic plan to reduce the uncertainties surrounding the reserve potential of the unconventional gas resources, namely, the Eastern Gas Shales, the Western Gas Sands, Coalbed Methane, and methane from Geopressured Aquifers. The intent is to provide a concise overview of the program and to identify the technical activities that must be completed in the successful achievement of the objectives.

Komar, C.A. (ed.)

1980-01-01T23:59:59.000Z

288

Development of coalbed methane in Mississippi Warrior Basin  

SciTech Connect

Since 1980, over 3,863 coalbed methane wells have been drilled in the Warrior basin of Alabama at a drilling cost of $1.138 billion. Production of 119 bcf of gas has been sold. The important findings of this study were probable coalbeds across Monroe County at depths and thicknesses being produced profitably in Alabama as well as in the Northern Appalachian and Central Appalachian basins. The logs showed the coal to often be close to conventional gas reservoirs in sandstone, indicating a probable equilibrium gas content of the adjacent coals. The most prevalent depth of the coal seams was 1,600-1,800 ft across northeast Monroe County from near the Alabama state line in the Splunge Field to the Four Mile Creek Field near the Tombigbee River. Individual seam thickness ranged up to 11 ft. Cumulative thickness of all coal in a single well was a maximum of 30 ft in the 1,000 ft to 2,000 ft interval usually logged. These estimates were based on density, compensated neutron, caliper, and gamma ray logs. A core hole would be necessary to verify exact thicknesses, presence of a seam, gas content, and permeability of the coal seams. It is stressed that conventional well logs have limitations, but they are a valid first estimate of the potential of an area. The subject study also verified the discovery of coal in Clay County reported by the Mississippi Bureau of Geology in 1989. Also, deep-lying coals were observed on logs of single wells in Noxubee, Oktibbeha, and Lowndes Counties, where one deep well had a cumulative 72 ft of coal indicated. Although beyond the reach of industry now, technology of the coalbed methane process is progressing toward eventually managing coal at those depths.

Rogers, R.E.

1991-01-01T23:59:59.000Z

289

Trends in water quality variability for coalbed methane produced water  

Science Journals Connector (OSTI)

Abstract Energy production from unconventional natural gas resources, such as coalbed methane, has the potential to generate significant water quantities for use in water-stressed areas to augment existing water supplies. Coalbed methane (CBM) produced water is generated from shallower formations than traditional oil and gas resources where water quality may be influenced by fresh water supplies in the area. Variability in produced water quality between wells and across geologic basins must be characterized in order to categorize water types appropriate for beneficial use. Principal component analysis (PCA) was applied to a composite geochemical database to identify indicators of variability in water composition and quality. Component analysis revealed that water quality indicators of variability were related to: (i) aquifer recharge that dilutes constituent concentrations (37%), (ii) dissolution of soluble aquifer minerals such as sodium and exchange of calcium and magnesium (13.8%), and (iii) coal depositional environment influence on chloride and trace metal fractions (14% of variability). Ternary relationships between Na–Cl–HCO3 and Na–Ca–Mg correlate to marine influence in the coal depositional environment and well proximity to recharge, respectively. Relationships identified in this study highlight water quality compositions with opportunities for beneficial use.

Katharine G. Dahm; Katie L. Guerra; Junko Munakata-Marr; Jörg E. Drewes

2014-01-01T23:59:59.000Z

290

Sequestration of Carbon Dioxide in Coal with Enhanced Coalbed Methane RecoveryA Review  

Science Journals Connector (OSTI)

Sequestration of Carbon Dioxide in Coal with Enhanced Coalbed Methane RecoveryA Review† ... Other geologic formations, such as depleted petroleum reservoirs, deep saline aquifers and others have received considerable attention as sites for sequestering CO2. ...

Curt M. White; Duane H. Smith; Kenneth L. Jones; Angela L. Goodman; Sinisha A. Jikich; Robert B. LaCount; Stephen B. DuBose; Ekrem Ozdemir; Badie I. Morsi; Karl T. Schroeder

2005-03-22T23:59:59.000Z

291

U.S. Coalbed Methane Proved Reserves Sales (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Sales (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 208...

292

New Mexico--West Coalbed Methane Proved Reserves New Field Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 0 0 - ...

293

Chapter 18 - Worldwide Coal Mine Methane and Coalbed Methane Activities  

Science Journals Connector (OSTI)

Abstract The chapter provides an overview of coal bed methane production in all countries (except USA; covered in Chapter 17) around the world where there is a viable coal deposit. Coal deposits are shown in a map and coal bed methane reserves are estimated. All countries can follow the lead provided by USA in CBM production where 10% of total gas consumption (2 TCF/year) comes from coal seams. Exploitation of thick and deep coal seams using the latest technology can create a vast source of domestic energy for many countries around the world.

Charlee Boger; James S. Marshall; Raymond C. Pilcher

2014-01-01T23:59:59.000Z

294

Coalbed methane potential assessed in Forest City basin  

SciTech Connect

This paper reports that the Forest City basin is a shallow cratonic depression located in northeastern Kansas, southeastern Nebraska, southern Iowa and northern Missouri. Historically, the Forest City basin in northeastern Kansas has been a shallow oil and gas province with minor coal production. The Iowa and Missouri portion has had minor oil production and moderate coal mining. In recent years there has been little coal mining in the Forest City in Iowa and Kansas and only minor production in Missouri. Before 1940, gas was produced from coal beds and shales in the Kansas portion of the Forest City basin. The Cherokee group (Altokan and Desmoinesian age) includes section containing the largest number of actively mined coals and has the greatest available data for coalbed methane evaluation.

Tedesco, S.A. (CST Oil and Gas Corp., Denver, CO (US))

1992-02-10T23:59:59.000Z

295

Coalbed-methane pilots - timing, design, and analysis  

SciTech Connect

Four distinct sequential phases form a recommended process for coalbed-methane (CBM)-prospect assessment: initial screening reconnaissance, pilot testing, and final appraisal. Stepping through these four phases provides a program of progressively ramping work and cost, while creating a series of discrete decision points at which analysis of results and risks can be assessed. While discussing each of these phases in some degree, this paper focuses on the third, the critically important pilot-testing phase. This paper contains roughly 30 specific recommendations and the fundamental rationale behind each recommendation to help ensure that a CBM pilot will fulfill its primary objectives of (1) demonstrating whether the subject coal reservoir will desorb and produce consequential gas and (2) gathering the data critical to evaluate and risk the prospect at the next-often most critical-decision point.

Roadifer, R.D.; Moore, T.R.

2009-10-15T23:59:59.000Z

296

A study on coalbed methane reserve of Shanxi: Hedong coalfield reserve and its utilization  

SciTech Connect

Coalbed gas, i.e. coalbed methane, is considered an unconventional gas, formed during coal accumulation and preserved in coal seams. In the past, coalbed gas was considered a major hazard factor to the safety of mining and caused countless explosive events and great losses to the enterprises and even to the country. Early in 1960s and 70s, it was recognized that coalbed gas could be utilized as an energy resource and collected through tunnels in China. In 1995, the output of tunnel gas reached 500Mm{sup 3}, however, surface pumping is still at its beginning stage, test and appraisal; so far, no commercial development is being carried out in China. Hedong coalfield, situated in the west of Shanxi province and bordered by the Yellow River in the northwest and outcrop seams in the southeast, is 540km long (N-S) and 10--40 km wide (E-W) and covers an area of 17,000 km{sup 2} across 13 counties of Xinzou, Luliang, Linfen and Yuncheng prefectures. It is the No. 2 coalfield in Shanxi province and the well-known base of excellent coking coal and power coal in China. Hedong coalfield is not only rich in coal resource, but also in coalbed methane. This paper describes the geology of the coalfield (including structure, magmatic activity, coal seams and coal grade); the regularity of coalbed methane occurrence in the Hedong coalfield; the calculation of coalbed methane resource; and the use of coalbed methane for motor fuels and chemicals production. The total resource is 1468.93Gm{sup 3}. The production of motor fuels can be realized by the following processes: (a) synthetic methanol as substitute of gasoline; (b) F-T synthesis for synthetic gasoline and diesel oil; (c) Compressed natural gas as motor fuel; and (d) Liquefied natural gas as motor fuel. The production of organic chemicals is suggested with the following technology: (a) Two-stage steam reforming to convert methane to synthetic gas various organic chemicals can be produced therefrom; (b) Partial oxidation of methane to produce synthesis gas and acetylene; (c) Coalbed methane to produce hydrogen cyanide and chloromethanes; and (d) Coalbed methane to produce acrylonitrile, acetylene, ethylene, propylene and butylenes.

Kong, X.; Fan, R.; Hu, Y.; Wang, M.; Wang, M.; Chen, Z.; Li, M.; Peng, S. [Taiyuan Ke-jin Technology Development Service (China)

1997-12-31T23:59:59.000Z

297

Table 17. Coalbed methane proved reserves, reserves changes, and production, 2011  

U.S. Energy Information Administration (EIA) Indexed Site

Coalbed methane proved reserves, reserves changes, and production, 2011 Coalbed methane proved reserves, reserves changes, and production, 2011 billion cubic feet Published New Reservoir Proved Revision Revision New Field Discoveries Estimated Proved Reserves Adjustments Increases Decreases Sales Acquisitions Extensions Discoveries in Old Fields Production Reserves State and Subdivision 12/31/10 (+,-) (+) (-) (-) (+) (+) (+) (+) (-) 12/31/11 Alaska 0 0 0 0 0 0 0 0 0 0 0 Lower 48 States 17,508 -15 2,071 1,668 1,775 1,710 736 0 13 1,763 16,817 Alabama 1,298 -45 23 86 104 219 3 0 0 98 1,210 Arkansas 28 0 0 3 0 0 0 0 0 4 21 California 0 0 0 0 0 0 0 0 0 0 0 Colorado 6,485 73 698 367 1,034 1,021 220 0 0 516 6,580 Florida 0 0 0 0 0 0 0 0 0 0 0 Kansas 258 -6 24 14 0 0 3 0 0 37 228 Kentucky 0 0 0 0 0 0 0 0 0 0 0 Louisiana 0 0 0 0 0 0 0 0 0 0 0 North Onshore 0 0 0 0 0 0 0 0 0 0 0 South Onshore 0 0 0 0 0 0 0 0 0 0 0 State Offshore 0 0 0 0 0 0 0 0 0 0 0 Michigan 0 0 0 0 0 0 0 0 0 0 0 Mississippi 0 0 0 0 0 0 0 0 0

298

Recovery economics of coalbed methane and cost implications of pipeline hookup  

SciTech Connect

For Appalachian coal mines, the totaled methane emission rates exceed 180 MMCF/D, with active mines pushing deeper into virgin seams having higher relative gas contents. While most of this gas currently is vented into the atmosphere to prevent gas-related explosions, the technology exists to develop this valuable gas resource either in conjunction with mining or independently. In 1977, the U.S. Department of Energy (DOE) began the Methane Recovery from Coalbeds Project (MRCP) to characterize and help encourage utilization of this resource. Since the project inception, TRW has been involved in the collection and analysis of data, and is in the process of forming a coherent picture of the coalbed methane resource potential for the entire Appalachian region. Preliminary analysis indicates an estimated in-place coalbed methane resource in the Appalachian Basin of up to 150 TCF. Eastern coal operators are beginning to better understand the production potential of coalbed methane. In Buchanan County, Virginia, the Island Creek Coal Company produced up to 434 MCF/d from 12 horizontal boreholes drilled into the mine face. In Alabama, U.S. Steel's mines recently began commercial production and sold 25 MMCF of pipeline quality gas in December of 1981. This study examines the recovery economics of coalbed methane, and specifically addresses the cost implications of pipeline hook-up. An analysis which addresses the size of a project, pipeline construction costs, and anticipated contract gas price helps determine an economical project-topipeline hook-up distance.

Dickehuth, D.A.; Adams, M.A.; Hayoz, F.P.

1982-11-01T23:59:59.000Z

299

Temperature–pressure conditions in coalbed methane reservoirs of the Black Warrior basin: implications for carbon sequestration and enhanced coalbed methane recovery  

Science Journals Connector (OSTI)

Sorption of gas onto coal is sensitive to pressure and temperature, and carbon dioxide can be a potentially volatile supercritical fluid in coalbed methane reservoirs. More than 5000 wells have been drilled in the coalbed methane fields of the Black Warrior basin in west-central Alabama, and the hydrologic and geothermic information from geophysical well logs provides a robust database that can be used to assess the potential for carbon sequestration in coal-bearing strata. Reservoir temperature within the coalbed methane target zone generally ranges from 80 to 125 °F (27–52 °C), and geothermal gradient ranges from 6.0 to 19.9 °F/1000 ft (10.9–36.2 °C/km). Geothermal gradient data have a strong central tendency about a mean of 9.0 °F/1000 ft (16.4 °C/km). Hydrostatic pressure gradients in the coalbed methane fields range from normal (0.43 psi/ft) to extremely underpressured (wells have pressure gradients greater than 0.30 psi/ft, and 20% have pressure gradients lower than 0.10 psi/ft. Pockets of underpressure are developed around deep longwall coal mines and in areas distal to the main hydrologic recharge zone, which is developed in structurally upturned strata along the southeastern margin of the basin. Geothermal gradients within the coalbed methane fields are high enough that reservoirs never cross the gas–liquid condensation line for carbon dioxide. However, reservoirs have potential for supercritical fluid conditions beyond a depth of 2480 ft (756 m) under normally pressured conditions. All target coal beds are subcritically pressured in the northeastern half of the coalbed methane exploration fairway, whereas those same beds were in the supercritical phase window prior to gas production in the southwestern half of the fairway. Although mature reservoirs are dewatered and thus are in the carbon dioxide gas window, supercritical conditions may develop as reservoirs equilibrate toward a normal hydrostatic pressure gradient after abandonment. Coal can hold large quantities of carbon dioxide under supercritical conditions, and supercritical isotherms indicate non-Langmiur conditions under which some carbon dioxide may remain mobile in coal or may react with formation fluids or minerals. Hence, carbon sequestration and enhanced coalbed methane recovery show great promise in subcritical reservoirs, and additional research is required to assess the behavior of carbon dioxide in coal under supercritical conditions where additional sequestration capacity may exist.

Jack C Pashin; Marcella R McIntyre

2003-01-01T23:59:59.000Z

300

Geologic and hydrologic controls critical to coalbed methane producibility and resource assessment: Williams Fork Formation, Piceance Basin, Northwest Colorado. Topical report, December 1, 1993-November 30, 1995  

SciTech Connect

The objectives of this report are: To further evaluate the interplay of geologic and hydrologic controls on coalbed methane production and resource assessment; to refine and validate our basin-scale coalbed methane producibility model; and to analyze the economics of coalbed methane exploration and development in the Piceance Basin.

Tyler, R.; Scott, A.R.; Kaiser, W.R.; Nance, H.S.; McMurry, R.G.

1996-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Alaska coal geology, resources, and coalbed methane potential  

SciTech Connect

Estimated Alaska coal resources are largely in Cretaceous and Tertiary rocks distributed in three major provinces, Northern Alaska-Slope, Central Alaska-Nenana, and Southern Alaska-Cook Inlet. Cretaceous resources, predominantly bituminous coal and lignite, are in the Northern Alaska-Slope coal province. Most of the Tertiary resources, mainly lignite to subbituminous coal with minor amounts of bituminous and semianthracite coals, are in the other two provinces. The combined measured, indicated, inferred, and hypothetical coal resources in the three areas are estimated to be 5,526 billion short tons (5,012 billion metric tons), which constitutes about 87 percent of Alaska's coal and surpasses the total coal resources of the conterminous United States by 40 percent. Coal mining has been intermittent in the Central Alaskan-Nenana and Southern Alaska-Cook Inlet coal provinces, with only a small fraction of the identified coal resource having been produced from some dozen underground and strip mines. Alaskan coals have a lower sulfur content (averaging 0.3 percent) than most coals in the conterminous United States and are within or below the minimum sulfur value mandated by the 1990 Clean Air Act amendments. Another untapped potential resource is coalbed methane estimated to total 1,000 trillion cubic feet (28 trillion cubic meters).

Romeo M. Flores; Gary D. Stricker; Scott A. Kinney

2005-11-15T23:59:59.000Z

302

Coalbed methane potential of the Greater Green River, Piceance, Powder River, and Raton Basins. Topical report, January 1991-July 1991  

SciTech Connect

Coalbed methane potential of the Greater Green River, Piceance, Powder River, and Raton Basins was evaluated in the context of geologic and hydrologic characteristics identified in the San Juan Basin, the nation's leading coalbed methane producing basin. The major comparative criteria were (1) coalbed methane resources, (2) geologic and hydrologic factors that predict areas of high gas producibility and high coalbed reservoir permeability, and (3) coalbed thermal maturity. The technical criteria were expanded to include structure, depositional systems, and data base and then combined with economic criteria (production, industry activity, and pipeline availability) to evaluate the coalbed methane potential of the basins. The Greater Green River and Piceance Basins have primary potential to make a significant near-term contribution to the nation's gas supply. These basins have large gas resources, high-rank coals, high gas contents, and established coalbed methane production. The Greater Green River Basin has numerous coalbed methane targets, good coal-seam permeability, and extensive hydrologic areas favorable for production. The Powder River and Raton Basins were judged to have secondary potential. Coal beds in the Powder River Basin are thermally immature and produce large volumes of water; the Raton Basin has a poor data base and has no gas pipeline infrastructure. Low production and minimal industry activity further limit the near-term potential of the Raton Basin. However, if economic criteria are discounted and only major technical criteria are considered, the Greater Green River and Raton Basins are assigned primary potential. The Raton Basin's shallow, thermally mature coal beds of good permeability are attractive coalbed methane targets, but low coal-seam permeability limits the coalbed methane potential of the Piceance Basin.

Tyler, R.; Ambrose, W.A.; Scott, A.R.; Kaiser, W.R.

1991-12-01T23:59:59.000Z

303

The analysis of the factors effect on coalbed methane pool concentration and high-production -- The North China coalbed methane districts as an example  

SciTech Connect

The factors which affect coalbed methane (CBM) pool concentration and high-production based upon the exploration and research of the North China CBM districts are coal facies, coal rank and metamorphic types, structural features, the surrounding rocks and their thickness, and hydrogeological conditions. Coal facies, coal rank and their metamorphic types mainly affect the CBM forming characteristic, while the other factors effect the trap of CBM pool. The interaction of the above factors determines the petrophysics of coal reservoirs and extractability of CBM. The high-production areas where CBM pools develop well in North China CBM districts are sites which have a favorable coordination of the five factors. The poor-production areas where CBM pools are undeveloped in North China are caused by action of one or more unfavorable factors. Therefore the favorable factors coordination is the prerequisite in selecting sites for coalbed methane recovery.

Wang Shengwei; Zhang Ming; Zhuang Xiaoli

1997-12-31T23:59:59.000Z

304

U.S. Coalbed Methane Proved Reserves New Field Discoveries (Billion...  

Gasoline and Diesel Fuel Update (EIA)

U.S. Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 0 0...

305

Texas--RRC District 7C Coalbed Methane Proved Reserves (Billion...  

NLE Websites -- All DOE Office Websites (Extended Search)

C Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

306

Gas-lift technology applied to dewatering of coalbed methane wells in the black warrior basin  

SciTech Connect

Coalbed methane (CBM) wells are usually dewatered with sucker rod or progressive cavity pumps to reduce wellbore water levels, although not without problems. This paper describes high-volume artificial-lift technology that incorporates specifically designed gas-lift methods to dewater Black Warrior CBM wells. Gas lift provides improved well maintenance and production optimization by the use of conventional wireline service methods.

Johnson, K.J.; Coats, A. (Otis Engineering Corp., Dallas, TX (United States)); Marinello, S.A. (Colorado School of Mines, Golden, CO (United States))

1992-11-01T23:59:59.000Z

307

Well testing in coalbed methane (CBM) wells: An environmental remediation case history  

SciTech Connect

In 1993, methane seepage was observed near coalbed methane wells in southwestern Colorado. Well tests were conducted to identify the source of the seeps. The well tests were complicated by two-phase flow, groundwater flow, and gas readsorption. Using the test results, production from the area was simulated. The cause of the seeps was found to be depressuring in shallow coal near the surface, and a remediation plan using water injection near the seep area was formulated.

Cox, D.P.; Young, G.B.C.; Bell, M.J.

1995-12-31T23:59:59.000Z

308

Coalbed methane: A partial solution to Indonesia`s growing energy problems  

SciTech Connect

Indonesia contains the largest resources of coal in Southeast Asia. Indonesian scientists estimate that the in-place coalbed methane resource in 16 onshore basins is about 213 Tcf ({approximately}6 Tcm). This volume is approximately double Indonesia`s current reserves of natural gas. Indonesia is a rapidly industrializing nation of 186 million people, of which 111 million live in Java and 38 million in Sumatra. As industrialization progresses from the present low level, the growth in energy demand will be very rapid. Indonesia`s domestic gas demand is expected to increase form 1.6 Bcf/d (0.05 Bcm/d) in 1991 to 5.7 Bcf/d (0.2 Bcm/d) in 2021. Because the major gas resources of East Kalimantan, North Sumatra, and Natuna are so remote from the main consuming area in northwest Java and are dedicated for export by virtue of the national energy policy, the need is becoming urgent to develop new resources of natural gas, including coalbed methane, for the domestic market. Due to the high geothermal gradient, the coal deposits in the back-arc basins of Sumatra and Java are expected to be of higher than normal rank at depths favorable for coalbed methane production. The oil- and gas-productive Jatibarang sub-basin in northwest Java, with estimated in-place resources of coalbed methane in excess of 20 Tcf (0.6 Tcm), is considered to be the most prospective area in Indonesia for the near-term development of coalbed methane. This area includes Jakarta and vicinity, the most populous and most heavily industrialized part of Indonesia.

Murray, D.K. [D. Keith Murray & Associates, Lakewood, CO (United States); Gold, J.P. [Consulting Geologist, Evergreen, CO (United States)

1995-04-01T23:59:59.000Z

309

Diffusion Characterization of Coal for Enhanced Coalbed Methane Production.  

E-Print Network (OSTI)

??This thesis explores the concept of displacement of sorbed methane and enhancement of methane recovery by injection of CO2 into coal, while sequestering CO2. The… (more)

Chhajed, Pawan

2011-01-01T23:59:59.000Z

310

A model for changes in coalbed permeability during primary and enhanced methane, recovery  

SciTech Connect

The natural fracture network of a dual-porosity coalbed reservoir is made up of two sets of orthogonal, and usually subvertically oriented, cleats. Coalbed permeability has been shown to vary exponentially with changes in the effective horizontal stress acting across the cleats through the cleat-volume compressibility, which is analogous to pore compressibility in porous rocks. A formulation for changes in the effective horizontal stress of coalbeds during primary methane recovery, which includes a Langmuir type curve shrinkage term, has been proposed previously. This paper presents a new version of the stress formulation by making a direct link between the volumetric matrix strain and the amount of gas desorbed. The resulting permeability model can be extended readily to account for adsorption-induced matrix swelling as well as matrix shrinkage during enhanced methane recovery involving the injection of an inert gas or gas mixture into the seams. The permeability model is validated against a recently published pressure-dependent permeability multiplier curve representative of the San Juan basin coalbeds at post-dewatering production stages. The extended permeability model is then applied successfully to history matching a micropilot test involving the injection of flue gas (consisting mainly of CO{sub 2} and N{sub 2}) at the Fenn Big Valley, Alberta, Canada.

Shi, J.Q.; Durucan, S. [University of London Imperial College of Science Technology & Medicine, London (United Kingdom). Dept. of Environmental Science & Technology

2005-08-01T23:59:59.000Z

311

Carbon Dioxide Storage in Coal Seams with Enhanced Coalbed Methane Recovery: Geologic Evaluation, Capacity Assessment and Field Validation of the Central Appalachian Basin.  

E-Print Network (OSTI)

??The mitigation of greenhouse gas emissions and enhanced recovery of coalbed methane are benefits to sequestering carbon dioxide in coal seams. This is possible because… (more)

Ripepi, Nino Samuel

2009-01-01T23:59:59.000Z

312

Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production  

NLE Websites -- All DOE Office Websites (Extended Search)

Seam Well Completion Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production U.S. Department of Energy Office of Fossil Energy and National Energy Technology Laboratory Strategic Center for Natural Gas September 2003 DOE/NETL-2003/1193 Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production U.S. Department of Energy National Energy Technology Laboratory (NETL) (Strategic Center for Natural Gas) DOE/NETL-2003/1193 September 2003 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal

313

Demonstration projects for coalbed methane and Devonian shale gas: Final report. [None  

SciTech Connect

In 1979, the US Department of Energy provided the American Public Gas Association (APGA) with a grant to demonstrate the feasibility of bringing unconventional gas such as methane produced from coalbeds or Devonian Shale directly into publicly owned utility system distribution lines. In conjunction with this grant, a seven-year program was initiated where a total of sixteen wells were drilled for the purpose of providing this untapped resource to communities who distribute natural gas. While coalbed degasification ahead of coal mining was already a reality in several parts of the country, the APGA demonstration program was aimed at actual consumer use of the gas. Emphasis was therefore placed on degasification of coals with high methane gas content and on utilization of conventional oil field techniques. 13 figs.

Verrips, A.M.; Gustavson, J.B.

1987-04-01T23:59:59.000Z

314

Challenges in assessment, management and development of coalbed methane resources in the Powder River Basin, Wyoming  

SciTech Connect

Coalbed methane development in the Powder River Basin has accelerated rapidly since the mid-1990's. forecasts of coalbed methane (CBM) production and development made during the late 1980's and early 1990's have proven to be distinctly unreliable. Estimates of gas in place and recoverable reserves have also varied widely. This lack of reliable data creates challenges in resource assessment, management and development for public resource management agencies and the CBM operators. These challenges include a variety of complex technical, legal and resource management-related issues. The Bureau of Land Management's Wyoming Reservoir Management Group (WRMG) and US Geological Survey (USGS), with the cooperation and assistance of CBM operators and other interested parties have initiated cooperative studies to address some of these issues. This paper presents results of those studies to date and outlines the agencies' goals and accomplishments expected at the studies' conclusion.

McGarry, D.E.

2000-07-01T23:59:59.000Z

315

Coalbed methane technology development in the Appalachian basin. Topical Report, July 1989-October 1990  

SciTech Connect

The primary objective of the field-based research is to determine the applicability of the current coalbed methane technology to the production of gas from the Appalachian Basin coal resource. Related objectives are to: (1) provide techniques to characterize and hydraulically stimulate this resource; (2) predict and measure gas production and correlate with assumed production mechanisms; (3) disseminate information learned to interested parties; and (4) recommend further research to optimize production from this resource.

Hunt, A.M.; Steele, D.J.

1991-01-01T23:59:59.000Z

316

Geologic and hydrologic controls on coalbed methane producibility, Williams Fork Formation, Piceance Basin, Colorado  

SciTech Connect

Structural and depositional setting, coal rank, gas content, permeability, hydrodynamics, and reservoir heterogeneity control the producibility of coalbed methane in the Piceance Basin. The coal-rich Upper Cretaceous, Williams Fork Formation is genetically defined and regionally correlated to the genetic sequences in the Sand Wash Basin, to the north. Net coal is thickest in north-south oriented belts which accumulated on a coastal plain, behind west-east prograding shoreline sequences. Face cleats of Late Cretaceous age strike E-NE and W-NW in the southern and northern parts of the basin, respectively, normal to the Grand Hogback thrust front. Parallelism between face-cleat strike and present-day maximum horizontal stresses may enhance or inhibit coal permeability in the north and south, respectively. Geopressure and hydropressure are both present in the basin with regional hydrocarbon overpressure dominant in the central part of the basin and hydropressure limited to the basin margins. The most productive gas wells in the basin are associated with structural terraces, anticlines, and/or correspond to Cameo-Wheeler-Fairfield coal-sandstone development, reflecting basement detached thrust-faulting, fracture-enhanced permeability, and reservoir heterogeneity. Depositional heterogeneties and thrusts faults isolate coal reservoirs along the Grand Hogback from the subsurface by restricting meteoric recharge and basinward flow of ground water. An evolving coalbed methane producibility model predicts that in the Piceance Basin extraordinary coalbed methane production is precluded by low permeability and by the absence of dynamic ground-water flow.

Tyler, R.; Scott, A.R.; Kaiser, W.R.; Nance, H.S.; McMurry, R.G. [Univ. of Texas, Austin, TX (United States)

1996-12-31T23:59:59.000Z

317

Geologic and hydrologic controls on coalbed methane producibility, Williams Fork Formation, Piceance Basin, Colorado  

SciTech Connect

Structural and depositional setting, coal rank, gas content, permeability, hydrodynamics, and reservoir heterogeneity control the producibility of coalbed methane in the Piceance Basin. The coal-rich Upper Cretaceous, Williams Fork Formation is genetically defined and regionally correlated to the genetic sequences in the Sand Wash Basin, to the north. Net coal is thickest in north-south oriented belts which accumulated on a coastal plain, behind west-east prograding shoreline sequences. Face cleats of Late Cretaceous age strike E-NE and W-NW in the southern and northern parts of the basin, respectively, normal to the Grand Hogback thrust front. Parallelism between face-cleat strike and present-day maximum horizontal stresses may enhance or inhibit coal permeability in the north and south, respectively. Geopressure and hydropressure are both present in the basin with regional hydrocarbon overpressure dominant in the central part of the basin and hydropressure limited to the basin margins. The most productive gas wells in the basin are associated with structural terraces, anticlines, and/or correspond to Cameo-Wheeler-Fairfield coal-sandstone development, reflecting basement detached thrust-faulting, fracture-enhanced permeability, and reservoir heterogeneity. Depositional heterogeneties and thrusts faults isolate coal reservoirs along the Grand Hogback from the subsurface by restricting meteoric recharge and basinward flow of ground water. An evolving coalbed methane producibility model predicts that in the Piceance Basin extraordinary coalbed methane production is precluded by low permeability and by the absence of dynamic ground-water flow.

Tyler, R.; Scott, A.R.; Kaiser, W.R.; Nance, H.S.; McMurry, R.G. (Univ. of Texas, Austin, TX (United States))

1996-01-01T23:59:59.000Z

318

Area balance and strain in coalbed methane reservoirs of the Black Warrior basin  

SciTech Connect

Investigation of coalbed methane reservoirs in the Black Warrior basin of Alabama has established a correspondence between productivity and structural position, but the reasons for this correspondence remain uncertain. In Cedar Cove field, for example, exceptionally productive wells are concentrated in a rollover anticline, whereas in Oak Grove field, exceptionally productive wells are aligned along a synclinal axis. This suggests that factors controlling gas production are a derivative of the structural geometry, and not the geometry by itself. Natural fractures and a low state of in-situ stress facilitate depressurization of coalbed reservoirs by dewatering, and hence, desorption and production of coalbed gas. Our hypothesis is that the abundance and openness of natural fractures in the Black Warrior basin are a direct expression of the layer-parallel strain dictated by map-scale structural geometry. Area balancing techniques can be used to quantify requisite strain, which is the homogeneous layer-parallel strain required for local area balance, and can also be used to constrain and verify structural cross sections. Application of area balancing techniques to extensional structures in the Black Warrior basin indicates that coalbed gas is produced from thin-skinned structures detached within the coal-bearing Pottsville Formation. Within reservoir intervals, requisite strain values are as high as 10 percent and increase downward toward the basal detachment. Mapping structure and production indicates that some productivity sweet spots correlate with enhanced bed curvature. Whereas requisite strain is the homogeneous strain calculated for discrete bed segments, curvature affects the distribution of strain within those segments. Recognizing this, our research is now focused on integrating area balancing techniques with curvature analysis to explain production patterns in coalbed methane reservoirs.

Pashin, J.C. [Geological Survey of Alabama, Tuscaloosa, AL (United States); Groshong, R.H., Jr. [Univ. of Alabama, Tuscaloosa, AL (United States)

1996-09-01T23:59:59.000Z

319

Powder River Basin coalbed methane: The USGS role in investigating this ultimate clean coal by-product  

SciTech Connect

For the past few decades, the Fort Union Formation in the Powder River Basin has supplied the Nation with comparatively clean low ash and low sulfur coal. However, within the past few years, coalbed methane from the same Fort Union coal has become an important energy by-product. The recently completed US Geological Survey coal resource assessment of the Fort Union coal beds and zones in the northern Rocky Mountains and Great Plains (Fort Union Coal Assessment Team, 1999) has added useful information to coalbed methane exploration and development in the Powder River Basin in Wyoming and Montana. Coalbed methane exploration and development in the Powder River Basin has rapidly accelerated in the past three years. During this time more than 800 wells have been drilled and recent operator forecasts projected more than 5,000 additional wells to be drilled over the next few years. Development of shallow (less than 1,000 ft. deep) Fort Union coal-bed methane is confined to Campbell and Sheridan Counties, Wyoming, and Big Horn County, Montana. The purpose of this paper is to report on the US Geological Survey's role on a cooperative coalbed methane project with the US Bureau of Land Management (BLM), Wyoming Reservoir Management Group and several gas operators. This paper will also discuss the methodology that the USGS and the BLM will be utilizing for analysis and evaluation of coalbed methane reservoirs in the Powder River Basin. The USGS and BLM need additional information of coalbed methane reservoirs to accomplish their respective resource evaluation and management missions.

Stricker, G.D.; Flores, R.M.; Ochs, A.M.; Stanton, R.W.

2000-07-01T23:59:59.000Z

320

Investigation of feasibility of injecting power plant waste gases for enhanced coalbed methane recovery from low rank coals in Texas  

E-Print Network (OSTI)

such as power plants. CO2 emissions can be offset by sequestration of produced CO2 in natural reservoirs such as coal seams, which may initially contain methane. Production of coalbed methane can be enhanced through CO2 injection, providing an opportunity...

Saugier, Luke Duncan

2004-09-30T23:59:59.000Z

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321

Water Management Strategies for Improved Coalbed Methane Production in the Black Warrior Basin  

SciTech Connect

The modern coalbed methane industry was born in the Black Warrior Basin of Alabama and has to date produced more than 2.6 trillion cubic feet of gas and 1.6 billion barrels of water. The coalbed gas industry in this area is dependent on instream disposal of co-produced water, which ranges from nearly potable sodium-bicarbonate water to hypersaline sodium-chloride water. This study employed diverse analytical methods to characterize water chemistry in light of the regional geologic framework and to evaluate the full range of water management options for the Black Warrior coalbed methane industry. Results reveal strong interrelationships among regional geology, water chemistry, and gas chemistry. Coalbed methane is produced from multiple coal seams in Pennsylvanian-age strata of the Pottsville Coal Interval, in which water chemistry is influenced by a structurally controlled meteoric recharge area along the southeastern margin of the basin. The most important constituents of concern in the produced water include chlorides, ammonia compounds, and organic substances. Regional mapping and statistical analysis indicate that the concentrations of most ionic compounds, metallic substances, and nonmetallic substances correlate with total dissolved solids and chlorides. Gas is effectively produced at pipeline quality, and the only significant impurity is N{sub 2}. Geochemical analysis indicates that the gas is of mixed thermogenic-biogenic origin. Stable isotopic analysis of produced gas and calcite vein fills indicates that widespread late-stage microbial methanogenesis occurred primarily along a CO{sub 2} reduction metabolic pathway. Organic compounds in the produced water appear to have helped sustain microbial communities. Ammonia and ammonium levels increase with total dissolved solids content and appear to have played a role in late-stage microbial methanogenesis and the generation of N{sub 2}. Gas production tends to decline exponentially, whereas water production tends to decline hyperbolically. Hyperbolic decline indicates that water volume is of greatest concern early in the life of a coalbed methane project. Regional mapping indicates that gas production is controlled primarily by the ability to depressurize permeable coal seams that are natively within the steep part of the adsorption isotherm. Water production is greatest within the freshwater intrusion and below thick Cretaceous cover strata and is least in areas of underpressure. Water management strategies include instream disposal, which can be applied effectively in most parts of the basin. Deep disposal may be applicable locally, particularly where high salinity limits the ability to dispose into streams. Artificial wetlands show promise for the management of saline water, especially where the reservoir yield is limited. Beneficial use options include municipal water supply, agricultural use, and industrial use. The water may be of use to an inland shrimp farming industry, which is active around the southwestern coalbed methane fields. The best opportunities for beneficial use are reuse of water by the coalbed methane industry for drilling and hydraulic fracturing. This research has further highlighted opportunities for additional research on treatment efficiency, the origin of nitrogen compounds, organic geochemistry, biogenic gas generation, flow modeling, and computer simulation. Results of this study are being disseminated through a vigorous technology transfer program that includes web resources, numerous presentations to stakeholders, and a variety of technical publications.

Pashin, Jack; McIntyre-Redden, Marcella; Mann, Steven; Merkel, David

2013-10-31T23:59:59.000Z

322

Organic petrography of coals from a coalbed methane test well, Ouachita Parish, Louisiana  

SciTech Connect

In March 2003, the U.S. Geological Survey, the Louisiana Geological Survey, and EnerVest Management Partners Ltd. participated in a Cooperative Research and Development Agreement (CRADA) to drill and core the Fairbanks Real Estate No. 359 (FRE No. 359) coalbed methane test well in Ouachita Parish, Louisiana. This effort was in support of ongoing U.S. Geological Survey investigations into the coal gas potential of the Gulf Coastal Plain. To determine possible relationships between coalbed gas content and coal composition, maceral modes were determined for 17 subsurface coal and carbonaceous shale samples cored and desorbed from the Paleocene-Eocene Wilcox Group. Similar determinations of maceral mode were made on cuttings collected from 5 non-cored coaly intervals in the overlying Eocene Sparta Sand. 22 refs., 11 figs., 3 tabs.

Paul C. Hackley; Peter D. Warwick [USGS, Reston, VA (United States)

2005-07-01T23:59:59.000Z

323

Coalbed methane potential of the Pechora Coalfield, Timan-Pechora Basin, Russia  

SciTech Connect

A comparison of the more important geologic attributes of coal beds in the coalbed methane producing regions of the United States to Permian coal beds in the Pechora Coalfield, Timan-Pechora Basin, Russia indicates a high potential for commercial coalbed methane production. Although the depositional and structural histories, as well as the age, of the coal beds in the Pechora Coalfield are different than coal beds in U.S. basins, coal quality attributes are similar. The more prospective part of the coal-bearing sequence is as thick as 1600 m and contains more than 150 coal beds that individually are as thick as 4 m. These coal beds are composed primarily of rank ranges from subbituminous to anthracite (,0.5->2.5% R[sub 0]), with the highest rank coal located near the city of Vorkuta. Published data indicates that the gas content of coals is as high as 28-35 m[sup 3]/ton, with an average value of 18 m[sup 3]/ton. About 700 MMCM of gas per year is emmitted from coal mines. Pore pressures in the coal beds are unknown, however, interbedded sandstones in some parts of the basin are overpressured. The commonly occurring problem, in mid-latitude coalbed methane well, of excessive amounts of water may be alleviated in this high-latitude coal field. We suggest that the wide-spread occurrence of permafrost in the Pechora Coalfield may form an effective barrier to down-dip water flow, thereby facilitating the dewatering state. In summary, the quality of coal beds in the Pechora Coalfield are similar to methane producing coal beds in the United States and should, therefore, be favorable for commercial rates of gas production.

Yakutseni, V.P.; Petrova, Y.E. (VNIGRI, St. Petersburg (Russian Federation)); Law, B.E.; Ulmishek, G.F. (Geological Survey, Denver, CO (United States))

1996-01-01T23:59:59.000Z

324

Coalbed methane potential of the Pechora Coalfield, Timan-Pechora Basin, Russia  

SciTech Connect

A comparison of the more important geologic attributes of coal beds in the coalbed methane producing regions of the United States to Permian coal beds in the Pechora Coalfield, Timan-Pechora Basin, Russia indicates a high potential for commercial coalbed methane production. Although the depositional and structural histories, as well as the age, of the coal beds in the Pechora Coalfield are different than coal beds in U.S. basins, coal quality attributes are similar. The more prospective part of the coal-bearing sequence is as thick as 1600 m and contains more than 150 coal beds that individually are as thick as 4 m. These coal beds are composed primarily of rank ranges from subbituminous to anthracite (,0.5->2.5% R{sub 0}), with the highest rank coal located near the city of Vorkuta. Published data indicates that the gas content of coals is as high as 28-35 m{sup 3}/ton, with an average value of 18 m{sup 3}/ton. About 700 MMCM of gas per year is emmitted from coal mines. Pore pressures in the coal beds are unknown, however, interbedded sandstones in some parts of the basin are overpressured. The commonly occurring problem, in mid-latitude coalbed methane well, of excessive amounts of water may be alleviated in this high-latitude coal field. We suggest that the wide-spread occurrence of permafrost in the Pechora Coalfield may form an effective barrier to down-dip water flow, thereby facilitating the dewatering state. In summary, the quality of coal beds in the Pechora Coalfield are similar to methane producing coal beds in the United States and should, therefore, be favorable for commercial rates of gas production.

Yakutseni, V.P.; Petrova, Y.E. [VNIGRI, St. Petersburg (Russian Federation); Law, B.E.; Ulmishek, G.F. [Geological Survey, Denver, CO (United States)

1996-12-31T23:59:59.000Z

325

Coalbed Methane New Reservoir Discoveries in Old Fields  

U.S. Energy Information Administration (EIA) Indexed Site

91 0 13 0 0 2009-2013 Federal Offshore U.S. 0 0 0 0 0 2009-2013 Pacific (California) 0 0 0 0 0 2009-2013 Gulf of Mexico (Louisiana & Alabama) 0 0 0 0 0 2009-2013 Gulf of Mexico...

326

GEOLOGIC SCREENING CRITERIA FOR SEQUESTRATION OF CO2 IN COAL: QUANTIFYING POTENTIAL OF THE BLACK WARRIOR COALBED METHANE FAIRWAY, ALABAMA  

SciTech Connect

Sequestration of CO{sub 2} in coal has potential benefits for reducing greenhouse gas emissions from the highly industrialized Carboniferous coal basins of North America and Europe and for enhancing coalbed methane recovery. Hence, enhanced coalbed methane recovery operations provide a basis for a market-based environmental solution in which the cost of sequestration is offset by the production and sale of natural gas. The Black Warrior foreland basin of west-central Alabama contains the only mature coalbed methane production fairway in eastern North America, and data from this basin provide an excellent basis for quantifying the carbon sequestration potential of coal and for identifying the geologic screening criteria required to select sites for the demonstration and commercialization of carbon sequestration technology. Coalbed methane reservoirs in the upper Pottsville Formation of the Black Warrior basin are extremely heterogeneous, and this heterogeneity must be considered to screen areas for the application of CO{sub 2} sequestration and enhanced coalbed methane recovery technology. Major screening factors include stratigraphy, geologic structure, geothermics, hydrogeology, coal quality, sorption capacity, technology, and infrastructure. Applying the screening model to the Black Warrior basin indicates that geologic structure, water chemistry, and the distribution of coal mines and reserves are the principal determinants of where CO{sub 2} can be sequestered. By comparison, coal thickness, temperature-pressure conditions, and coal quality are the key determinants of sequestration capacity and unswept coalbed methane resources. Results of this investigation indicate that the potential for CO{sub 2} sequestration and enhanced coalbed methane recovery in the Black Warrior basin is substantial and can result in significant reduction of greenhouse gas emissions while increasing natural gas reserves. Coal-fired power plants serving the Black Warrior basin in Alabama emit approximately 31 MMst (2.4 Tcf) of CO{sub 2} annually. The total sequestration capacity of the Black Warrior coalbed methane fairway at 350 psi is about 189 MMst (14.9 Tcf), which is equivalent to 6.1 years of greenhouse gas emissions from the coal-fired power plants. Applying the geologic screening model indicates that significant parts of the coalbed methane fairway are not accessible because of fault zones, coal mines, coal reserves, and formation water with TDS content less than 3,000 mg/L. Excluding these areas leaves a sequestration potential of 60 MMst (4.7 Tcf), which is equivalent to 1.9 years of emissions. Therefore, if about10 percent of the flue gas stream from nearby power plants is dedicated to enhanced coalbed methane recovery, a meaningful reduction of CO{sub 2} emissions can be realized for nearly two decades. If the fresh-water restriction were removed for the purposes of CO{sub 2} sequestration, an additional 10 MMst (0.9 Tcf) of CO{sub 2} could feasibly be sequestered. The amount of unswept coalbed methane in the fairway is estimated to be 1.49 Tcf at a pressure of 50 psi. Applying the screening model results in an accessible unswept gas resource of 0.44 Tcf. Removal of the fresh-water restriction would elevate this number to 0.57 Tcf. If a recovery factor of 80 percent can be realized, then enhanced recovery activities can result in an 18 percent expansion of coalbed methane reserves in the Black Warrior basin.

Jack C. Pashin; Richard E. Carroll; Richard H. Groshong Jr.; Dorothy E. Raymond; Marcella McIntyre; J. Wayne Payton

2004-01-01T23:59:59.000Z

327

A review on recent advances in the numerical simulation for coalbed-methane-recovery process  

SciTech Connect

The recent advances in numerical simulation for primary coalbed methane (CBM) recovery and enhanced coalbed-methane recovery (ECBMR) processes are reviewed, primarily focusing on the progress that has occurred since the late 1980s. Two major issues regarding the numerical modeling will be discussed in this review: first, multicomponent gas transport in in-situ bulk coal and, second, changes of coal properties during methane (CH{sub 4}) production. For the former issues, a detailed review of more recent advances in modeling gas and water transport within a coal matrix is presented. Further, various factors influencing gas diffusion through the coal matrix will be highlighted as well, such as pore structure, concentration and pressure, and water effects. An ongoing bottleneck for evaluating total mass transport rate is developing a reasonable representation of multiscale pore space that considers coal type and rank. Moreover, few efforts have been concerned with modeling water-flow behavior in the coal matrix and its effects on CH{sub 4} production and on the exchange of carbon dioxide (CO{sub 2}) and CH{sub 4}. As for the second issue, theoretical coupled fluid-flow and geomechanical models have been proposed to describe the evolution of pore structure during CH{sub 4} production, instead of traditional empirical equations. However, there is currently no effective coupled model for engineering applications. Finally, perspectives on developing suitable simulation models for CBM production and for predicting CO{sub 2}-sequestration ECBMR are suggested.

Wei, X.R.; Wang, G.X.; Massarotto, P.; Golding, S.D.; Rudolph, V. [University of Queensland, Brisbane, Qld. (Australia)

2007-12-15T23:59:59.000Z

328

Coordinated studies in support of hydraulic fracturing of coalbed methane. Final report, July 1990-May 1995  

SciTech Connect

The primary objective of this project is to provide laboratory data that is pertinent to designing hydraulic fracturing treatments for coalbed methane. Coal fluid interactions studies, fracture conductivity, fluid leak-off through cleats, rheology, and proppant transport are designed to respresent Black Warrior and San Juan treatments. A second objective is to apply the information learned in laboratory testing to actual hydraulic fracturing treatments in order to improve results. A final objective is to review methods currently used to catalog well performance following hydraulic fracturing for the purpose of placing the data in a useable database that can be accessed by users to determine the success of various treatment scenarios.

Penny, G.S.; Conway, M.W.

1996-02-01T23:59:59.000Z

329

Geologic evaluation of critical production parameters for coalbed methane resources. Part 1. San Juan Basin. Annual report, August 1988-July 1989  

SciTech Connect

In the San Juan Basin, Fruitland Formation coal seams contain an estimated 43 to 49 Tcf of methane. With more than 500 producing coalbed methane wells and approximately 1,000 wells scheduled for drilling in 1990, the basin is one of the most active areas of coalbed methane exploration and production in the United States. Among the most important geologic factors affecting the occurrence and producibility of coalbed methane are depositional setting, structural attitude and fracturing of the coal, and regional hydraulic setting. In the second year of the study, the Bureau of Economic Geology evaluated the depositional setting and structure of Fruitland coal seams, which are both source rocks and reservoirs for coalbed methane, throughout the basin. The report summarizes the regional tectonic setting of the San Juan Basin; describes the Cretaceous stratigraphy, structure, and basin evolution; relates these factors to Fruitland coal and coalbed methane occurrence; describes studies of lineaments, fractures, and cleats; presents hydrodynamic controls on the producibility of coalbed methane from the Fruitland Formation; summarizes production from the Fruitland Formation; and evaluates geologic and hydrologic controls on coalbed methane producibility.

Ayers, W.B.; Kaiser, W.R.; Ambrose, W.A.; Swartz, T.E.; Laubach, S.E.

1990-01-01T23:59:59.000Z

330

GEOLOGIC SCREENING CRITERIA FOR SEQUESTRATION OF CO2 IN COAL: QUANTIFYING POTENTIAL OF THE BLACK WARRIOR COALBED METHANE FAIRWAY, ALABAMA  

SciTech Connect

Sequestration of CO{sub 2} in coal has potential to reduce greenhouse gas emissions from coal-fired power plants while enhancing coalbed methane recovery. Data from more than 4,000 coalbed methane wells in the Black Warrior basin of Alabama provide an opportunity to quantify the carbon sequestration potential of coal and to develop a geologic screening model for the application of carbon sequestration technology. This report summarizes stratigraphy and sedimentation, structural geology, geothermics, hydrology, coal quality, gas capacity, and production characteristics of coal in the Black Warrior coalbed methane fairway and the implications of geology for carbon sequestration and enhanced coalbed methane recovery. Coal in the Black Warrior basin is distributed among several fluvial-deltaic coal zones in the Lower Pennsylvanian Pottsville Formation. Most coal zones contain one to three coal beds that are significant targets for coalbed methane production and carbon sequestration, and net coal thickness generally increases southeastward. Pottsville strata have effectively no matrix permeability to water, so virtually all flow is through natural fractures. Faults and folds influence the abundance and openness of fractures and, hence, the performance of coalbed methane wells. Water chemistry in the Pottsville Formation ranges from fresh to saline, and zones with TDS content lower than 10,000 mg/L can be classified as USDW. An aquifer exemption facilitating enhanced recovery in USDW can be obtained where TDS content is higher than 3,000 mg/L. Carbon dioxide becomes a supercritical fluid above a temperature of 88 F and a pressure of 1,074 psi. Reservoir temperature exceeds 88 F in much of the study area. Hydrostatic pressure gradients range from normal to extremely underpressured. A large area of underpressure is developed around closely spaced longwall coal mines, and areas of natural underpressure are distributed among the coalbed methane fields. The mobility and reactivity of supercritical CO{sub 2} in coal-bearing strata is unknown, and potential exists for supercritical conditions to develop below a depth of 2,480 feet following abandonment of the coalbed methane fields. High-pressure adsorption isotherms confirm that coal sorbs approximately twice as much CO{sub 2} as CH{sub 4} and approximately four times as much CO{sub 2} as N{sub 2}. Analysis of isotherm data reveals that the sorption performance of each gas can vary by a factor of two depending on rank and ash content. Gas content data exhibit extreme vertical and lateral variability that is the product of a complex burial history involving an early phase of thermogenic gas generation and an ongoing stage of late biogenic gas generation. Production characteristics of coalbed methane wells are helpful for identifying areas that are candidates for carbon sequestration and enhanced coalbed methane recovery. Many geologic and engineering factors, including well construction, well spacing, and regional structure influence well performance. Close fault spacing limits areas where five-spot patterns may be developed for enhanced gas recovery, but large structural panels lacking normal faults are in several gas fields and can be given priority as areas to demonstrate and commercialize carbon sequestration technology in coalbed methane reservoirs.

Jack C. Pashin; Richard E. Carroll; Richard H. Groshong, Jr.; Dorothy E. Raymond; Marcella McIntyre; J. Wayne Payton

2003-01-01T23:59:59.000Z

331

Subsurface definition of the Allegheny Group coalbed methane prospect interval in Southwestern Pennsylvania and new gas content results  

SciTech Connect

A preliminary reconnaissance of coalbed methane gas content data from exploratory coal cores and pre-existing data implies that the greater the depth and rank, the greater the total and cumulative gas content. The coal seams studied, ranging in age from the Pennsylvanian-Permian Dunkard Group to the Middle Pennsylvanian Allegheny Group, are from the Main Bituminous Field and two of the anthracite fields. Consequently, the Pennsylvania Geological Survey and the West Virginia Geological and Economic Survey conducted a mapping investigation to evaluate the regional geology of the coal-bearing intervals and its influence on coalbed methane potential. Phase I of this study involved the entire Pennsylvanian coal-bearing interval; Phase II focused on a stratigraphic delineation and evaluation of Allegheny coalbeds and associated sandstones. A variety of cross sections and isopach maps show several prospective coalbeds and facies relationships with channel-fill sandstones. This suggests that some of these sandstones may be traps for coalbed methane. Often overlooked in reservoir characterization is the quality of a coal seam. Coal rank, grade, and type influence the reserves and production of coalbed methane; the higher the rank, the greater adsorptive capacity of the coal. The integration of coal quality with other critical tools of exploration may increase the success rate of finding {open_quotes}sweet spots.{close_quotes} Additional Pennsylvania Geological Survey drilling occurred in Beaver, Lawrence, Somerset, and Washington counties. Gas contents were graphically displayed against depth, thickness, and time for a variety of samples from 21 coal seams; average gas composition and Btu values were determined for selected samples.

Markowski, A.K. [Pennsylvania Dept. of Conservation and Natural Resources-Bureau of Topographic and Geologic Survey, Harrisburg, PA (United States)

1996-09-01T23:59:59.000Z

332

Coalbed Methane Proved Reserves as of Dec. 31  

U.S. Energy Information Administration (EIA) Indexed Site

Data Series: Proved Reserves as of Dec. 31 Adjustments Revision Increases Revision Decreases Sales Acquisitions Extensions New Field Discoveries New Reservoir Discoveries in Old Fields Estimated Production Period: Data Series: Proved Reserves as of Dec. 31 Adjustments Revision Increases Revision Decreases Sales Acquisitions Extensions New Field Discoveries New Reservoir Discoveries in Old Fields Estimated Production Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2006 2007 2008 2009 2010 2011 View History U.S. 19,620 21,874 20,798 18,578 17,508 16,817 1989-2011 Federal Offshore U.S. 0 0 0 0 0 0 2005-2011 Pacific (California) 0 0 0 0 0 0 2005-2011 Louisiana & Alabama 0 0 0 0 0 0 2005-2011 Texas 0 0 0 0 0 0 2005-2011 Alaska 0 0 0 0 0 0 2005-2011 Lower 48 States 19,620 21,874 20,798 18,578 17,508 16,817 2005-2011

333

Simulation study of the effect of well spacing, effect of permeability anisotropy, and effect of Palmer and Mansoori model on coalbed methane production  

E-Print Network (OSTI)

Interference for adjacent wells may be beneficial to Coalbed-Methane production. The effect is the acceleration of de-watering which should lead to earlier and higher gas rate peaks. It is inherent that permeability anisotropy exists in the coalbed...

Zulkarnain, Ismail

2006-04-12T23:59:59.000Z

334

Correlation of producing Fruitland Formation coals within the western outcrop and coalbed methane leakage on the Southern Ute Reservation  

SciTech Connect

The Colorado Geological Survey and Southern Ute Indian Tribe proposed to determine the cause of several gas seeps which are occurring on the western outcrop of the coalbed methane producing Fruitland Formation on the Southern Ute Indian Reservation. Correlation between outcrop coals and subsurface coals was necessary to determine seep source in the northern part of the study area. Subsurface studies include structure and net coal isopach maps, stratigraphy was cross-sections, production maps, and a production database. Detailed coal stratigraphy was correlated through production wells near the outcrop region. These maps and cross-sections were correlated to new surface outcrop maps generated by the Colorado, Geological Survey and the Southern Ute Division of Energy Resources. Methane gas seepage has been noted historically within the study area. The total investigation may help determine if gas seepage is natural, a result of coalbed methane development, or some combination of the above.

Carroll, Christopher J. Mathews, Stephanie, Wickman, Barbara

2000-07-07T23:59:59.000Z

335

Enhanced Coalbed Methane Recovery Through Sequestration of Carbon Dioxide: Potential for a Market-Based Environmental Solution in the Black Warrior Basin of Alabama  

NLE Websites -- All DOE Office Websites (Extended Search)

Coalbed Methane Recovery Through Sequestration of Coalbed Methane Recovery Through Sequestration of Carbon Dioxide: Potential for a Market-Based Environmental Solution in the Black Warrior Basin of Alabama Jack C. Pashin (jpashin@gsa.state.al.us; 205-349-2852) Geological Survey of Alabama P.O. Box 869999 Tuscaloosa, AL 35486 Richard H. Groshong, Jr. (rgroshon@wgs.geo.ua.edu; 205-348-1882) Deparment of Geology University of Alabama Tuscaloosa, AL 35487 Richard E. Carroll (rcarroll@gsa.state.al.us; 205-349-2852) Geological Survey of Alabama P.O. Box 869999 Tuscaloosa, AL 35486 Abstract Sequestration of CO 2 in coal is a market-based environmental solution with potential to reduce greenhouse gas emissions while increasing coalbed methane recovery. Producing coalbed methane through injection of CO 2 is also more efficient than current techniques requiring

336

Simulation study of the effect of well spacing, effect of permeability anisotropy, and effect of Palmer and Mansoori model on coalbed methane production.  

E-Print Network (OSTI)

??Interference for adjacent wells may be beneficial to Coalbed-Methane production. The effect is the acceleration of de-watering which should lead to earlier and higher gas… (more)

Zulkarnain, Ismail

2006-01-01T23:59:59.000Z

337

A parametric study on the benefits of drilling horizontal and multilateral wells in coalbed methane reservoirs  

SciTech Connect

Recent years have witnessed a renewed interest in development of coalbed methane (CBM) reservoirs. Optimizing CBM production is of interest to many operators. Drilling horizontal and multilateral wells is gaining Popularity in many different coalbed reservoirs, with varying results. This study concentrates on variations of horizontal and multilateral-well configurations and their potential benefits. In this study, horizontal and several multilateral drilling patterns for CBM reservoirs are studied. The reservoir parameters that have been studied include gas content, permeability, and desorption characteristics. Net present value (NPV) has been used as the yard stick for comparing different drilling configurations. Configurations that have been investigated are single-, dual-, tri-, and quad-lateral wells along with fishbone (also known as pinnate) wells. In these configurations, the total length of horizontal wells and the spacing between laterals (SBL) have been studied. It was determined that in the cases that have been studied in this paper (all other circumstances being equal), quadlateral wells are the optimum well configuration.

Maricic, N.; Mohaghegh, S.D.; Artun, E. [Chevron Energy Technology Co., Houston, TX (USA)

2008-12-15T23:59:59.000Z

338

Modeling Coal Matrix Shrinkage and Differential Swelling with CO2 Injection for Enhanced Coalbed Methane Recovery and Carbon Sequestration Applications  

SciTech Connect

Matrix shrinkage and swelling can cause profound changes in porosity and permeability of coalbed methane reservoirs during depletion or when under CO{sub 2} injection processes, with significant implication for primary or enhanced methane recovery. Two models that are used to describe these effects are discussed. The first was developed by Advanced Resources International (ARI) and published in 1990 by Sawyer, et al. The second model was published by Palmer and Mansoori in 1996. This paper shows that the two provide equivalent results for most applications. However, their differences in formulation cause each to have relative advantages and disadvantages under certain circumstances. Specifically, the former appears superior for undersaturated coalbed methane reservoirs while the latter would be better if a case is found where matrix swelling is strongly disproportional to gas concentration. Since its presentation in 1996, the Palmer and Mansoori model has justifiably received much critical praise. However, the model developed by ARI for the COMET reservoir simulation program has been in use since 1990, and has significant advantages in certain settings. A review of data published by Levine in 1996 reveals that carbon dioxide causes a greater degree of coal matrix swelling compared to methane, even when measured on a unit of concentration basis. This effect is described in this report as differential swelling. Differential swelling may have important consequences for enhanced coalbed methane and carbon sequestration projects. To handle the effects of differential swelling, an extension to the matrix shrinkage and swelling model used by the COMET simulator is presented and shown to replicate the data of Levine. Preliminary field results from a carbon dioxide injection project are also presented in support of the extended model. The field evidence supports that considerable changes to coal permeability occur with CO{sub 2} injection, with significant implication for the design, implementation and performance of enhanced coalbed methane recovery and CO{sub 2} sequestration projects.

L. J. Pekot; S. R. Reeves

2002-03-31T23:59:59.000Z

339

Methane/CO{sub 2} sorption modeling for coalbed methane production and CO{sub 2} sequestration  

SciTech Connect

A thorough study of the sorption behavior of coals to methane and carbon dioxide (CO{sub 2}) is critical for carbon sequestration in coal seams and enhanced coalbed methane recovery. This paper discusses the results of an ad/de-sorption study of methane and CO{sub 2}, in single gas environment, on a set of coal samples taken from the San Juan and Illinois Basins. The results indicate that, under similar temperature and pressure conditions, coals exhibit higher affinity to CO{sub 2} as compared to methane and that the preferential sorption ratio varies between 2:1 and 4:1. Furthermore, the experimental data were modeled using Langmuir, BET, and Dubinin-Polanyi equations. The accuracy of the models in quantifying coal-gas sorption was compared using an error analysis technique. The Dubinin-Radushkevich equation failed to model the coal-gas sorption behavior satisfactorily. For methane, Langmuir, BET, and Dubinin-Astakhov (D-A) equations all performed satisfactorily within comparable accuracy. However, for CO{sub 2}, the performance of the D-A equation was found to be significantly better than the other two. Overall, the D-A equation fitted the experimental sorption data the best, followed by the Langmuir and BET equations. Since the D-A equation is capable of deriving isotherms for any temperature using a single isotherm, thus providing added flexibility to model the temperature variation due to injection/depletion, this is the recommended model to use. 49 refs., 9 figs., 5 tabs.

Satya Harpalani; Basanta K. Prusty; Pratik Dutta [Southern Illinois University-Carbondale, Carbondale, IL (United States). Department of Mining and Mineral Resources Engineering

2006-08-15T23:59:59.000Z

340

Damage tolerance of well-completion and stimulation techniques in coalbed methane reservoirs  

SciTech Connect

Coalbed methane (CBM) reservoirs are characterized as naturally fractured, dual porosity, low permeability, and water saturated gas reservoirs. Initially, the gas, water and coal are at thermodynamic equilibrium under prevailing reservoir conditions. Dewatering is essential to promote gas production. This can be accomplished by suitable completion and stimulation techniques. This paper investigates the efficiency and performance of the openhole cavity, hydraulic fractures, frack and packs, and horizontal wells as potential completion methods which may reduce formation damage and increase the productivity in coalbed methane reservoirs. Considering the dual porosity nature of CBM reservoirs, numerical simulations have been carried out to determine the formation damage tolerance of each completion and, stimulation approach. A new comparison parameter named as the normalized productivity index is defined as the ratio of the productivity index of a stimulated well to that of a nondamaged vertical well as a function of time. Typical scenarios have been considered to evaluate the CBM properties, including reservoir heterogeneity, anisotropy, and formation damage, for their effects on this index over the production time. The results for each stimulation technique show that the value of the index declines over the time of production with a rate which depends upon the applied technique and the prevailing reservoir conditions. The results also show that horizontal wells have the best performance if drilled orthogonal to the butt cleats. Open-hole cavity completions outperform vertical fractures if the fracture conductivity is reduced by any damage process. When vertical permeability is much lower than horizontal permeability, production of vertical wells will improve while productivity of horizontal wells will decrease.

Jahediesfanjani, H.; Civan, F. [University of Oklahoma, Norman, OK (United States)

2005-09-01T23:59:59.000Z

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341

Overview of GRI research at the Rock Creek Site, Black Warrior Basin. Overview of GRI research at Rock Creek: Eight years of cooperative research, coalbed methane shortcourse. Held in Abingdon, Virginia on October 23, 1992. Topical report  

SciTech Connect

The presentation slides from the October 23, 1992 workshop on coalbed methane exploration and production are assembled in this volume. They illustrate the following discussions: Overview of GRI Research at Rock Creek: Eight Years of Cooperative Research, Drilling and Completing Coalbed Methane Wells: Techniques for Fragile Formations, Connecting the Wellborne to the Formation: Perforations vs. Slotting, Coalbed Methane Well Testing in the Warrior Basin, Reservoir Engineering: A Case Study at Rock Creek, Fraccing of Multiple Thin Seams: Considerations and Constraints, Implementing Coal Seam Stimulations: Requirements for Successful Treatments, Coal-Fluid Interactions, Mine-Through Observations of Coal Seam Stimulations: Reality vs. Theory, and Recompleting Coalbed Methane Wells: The Second Try at Success.

Schraufnagel, R.

1992-10-01T23:59:59.000Z

342

Coordinated studies in support of hydraulic fracturing of coalbed methane. Annual report, January 1993-April 1994  

SciTech Connect

The production of natural gas from coal typically requires stimulation in the form of hydraulic fracturing and, more recently, cavity completions. The results of hydraulic fracturing treatments have ranged from extremely successful to less than satisfactory. The purpose of this work is to characterize common and potential fracturing fluids in terms of coal-fluid interactions to identify reasons for less than satisfactory performance and to ultimately devise alternative fluids and treatment procedures to optimize production following hydraulic fracturing. The laboratory data reported herein has proven helpful in designing improved hydraulic fracturing treatments and remedial treatments in the Black Warrior Basin. Acid inhibitors, scale inhibitors, additives to improve coal relative permeability to gas, and non-damaging polymer systems for hydraulic fracturing have been screened in coal damage tests. The optimum conditions for creating field-like foams in the laboratory have been explored. Tests have been run to identify minimum polymer and surfactant concentrations for applications of foam in coal. The roll of 100 mesh sand in controlling leakoff and impairing conductivity in coal has been investigated. The leakoff and proppant transport of fluids with breaker has been investigated and recommendations have been made for breaker application to minimize damage potential in coal. A data base called COAL`S has been created in Paradox (trademark) for Windows to catalogue coalbed methane activities in the Black Warrior and San Juan Basins.

Penny, G.S.; Conway, M.W.

1994-08-01T23:59:59.000Z

343

CO2 Sequestration in Coalbed Methane Reservoirs: Experimental Studies and Computer Simulations  

SciTech Connect

One of the approaches suggested for sequestering CO{sub 2} is by injecting it in coalbed methane (CBM) reservoirs. Despite its potential importance for CO{sub 2} sequestration, to our knowledge, CO{sub 2} injection in CBM reservoirs for the purpose of sequestration has not been widely studied. Furthermore, a key element missing in most of the existing studies is the comprehensive characterization of the CBM reservoir structure. CBM reservoirs are complex porous media, since in addition to their primary pore structure, generated during coal formation, they also contain a variety of fractures, which may potentially play a key role in CO{sub 2} sequestration, as they generally provide high permeability flow paths for both CO{sub 2} and CH{sub 4}. In this report we present an overview of our ongoing experimental and modeling efforts, which aim to investigate the injection, adsorption and sequestration of CO{sub 2} in CBM reservoirs, the enhanced CH{sub 4} production that results, as well as the main factors that affect the overall operation. We describe the various experimental techniques that we utilize, and discuss their range of application and the value of the data generated. We conclude with a brief overview of our modeling efforts aiming to close the knowledge gap and fill the need in this area.

Muhammad Sahimi; Theodore T. Tsotsis

2002-12-15T23:59:59.000Z

344

A dynamic prediction model for gas–water effective permeability based on coalbed methane production data  

Science Journals Connector (OSTI)

Abstract An understanding of the relative permeability of gas and water in coal reservoirs is vital for coalbed methane (CBM) development. In this work, a prediction model for gas–water effective permeability is established to describe the permeability variation within coal reservoirs during production. The effective stress and matrix shrinkage effects are taken into account by introducing the Palmer and Mansoori (PM) absolute permeability model. The endpoint relative permeability is calibrated through experimentation instead of through the conventional Corey relative permeability model, which is traditionally employed for the simulation of petroleum reservoirs. In this framework, the absolute permeability model and the relative permeability model are comprehensively coupled under the same reservoir pressure and water saturation conditions through the material balance equation. Using the Qinshui Basin as an example, the differences between the actual curve that is measured with the steady-state method and the simulation curve are compared. The model indicates that the effective permeability is expressed as a function of reservoir pressure and that the curve shape is controlled by the production data. The results illustrate that the PM–Corey dynamic prediction model can accurately reflect the positive and negative effects of coal reservoirs. In particular, the model predicts the matrix shrinkage effect, which is important because it can improve the effective permeability of gas production and render the process more economically feasible.

H. Xu; D.Z. Tang; S.H. Tang; J.L. Zhao; Y.J. Meng; S. Tao

2014-01-01T23:59:59.000Z

345

Factors controlling high-yield coalbed methane vertical wells in the Fanzhuang Block, Southern Qinshui Basin  

Science Journals Connector (OSTI)

Abstract Whether a coalbed methane (CBM) well achieves high yield is controlled by various factors. Structural and hydrological control models of CBM productivity in vertical wells were built using a combined investigation of basic tectonic settings and hydrological conditions, as well as drainage parameters of the coal reservoir in the Fanzhuang Block, Southern Qinshui Basin. This study indicates that gas/water production differs significantly among wells with different structural settings or hydrogeological conditions. Low and unstable gas production rates in individual wells are the primary problem for the CBM development in the Fanzhuang Block. The impacts of some geologic and engineering factors on gas production were analyzed and estimated based on comparative analysis, quantitative analysis, and gray system theory. The results indicate that the critical reservoir ratio (CRR), liquid column height (LCH), and gas content are the most important factors in determining well productivity, followed by the equivalent drainage radius (EDR), the volume of frac sand, and the decline rate of working fluid levels during initial production. High-yield wells in the Fanzhuang Block always have the following conditions: gas content > 20 m3/t; burial depth of 500–700 m; CRR > 0.7; LCH > 400 m; volume of frac sand > 40 m3; EDR of 30–60 m; and a decline rate of working fluid level lower than 2 m/day during the initial production stage.

Shu Tao; Dazhen Tang; Hao Xu; Lijun Gao; Yuan Fang

2014-01-01T23:59:59.000Z

346

Powder River Basin Coalbed Methane Development and Produced Water Management Study  

SciTech Connect

Coalbed methane resources throughout the entire Powder River Basin were reviewed in this analysis. The study was conducted at the township level, and as with all assessments conducted at such a broad level, readers must recognize and understand the limitations and appropriate use of the results. Raw and derived data provided in this report will not generally apply to any specific location. The coal geology in the basin is complex, which makes correlation with individual seams difficult at times. Although more than 12,000 wells have been drilled to date, large areas of the Powder River Basin remain relatively undeveloped. The lack of data obviously introduces uncertainty and increases variability. Proxies and analogs were used in the analysis out of necessity, though these were always based on sound reasoning. Future development in the basin will make new data and interpretations available, which will lead to a more complete description of the coals and their fluid flow properties, and refined estimates of natural gas and water production rates and cumulative recoveries. Throughout the course of the study, critical data assumptions and relationships regarding gas content, methane adsorption isotherms, and reservoir pressure were the topics of much discussion with reviewers. A summary of these discussion topics is provided as an appendix. Water influx was not modeled although it is acknowledged that this phenomenon may occur in some settings. As with any resource assessment, technical and economic results are the product of the assumptions and methodology used. In this study, key assumptions as well as cost and price data, and economic parameters are presented to fully inform readers. Note that many quantities shown in various tables have been subject to rounding; therefore, aggregation of basic and intermediate quantities may differ from the values shown.

Advanced Resources International

2002-11-30T23:59:59.000Z

347

Mosquito larval habitat mapping using remote sensing and GIS: Implications of coalbed methane development and West Nile virus  

SciTech Connect

Potential larval habitats of the mosquito Culex tarsalis (Coquillett), implicated as a primary vector of West Nile virus in Wyoming, were identified using integrated remote sensing and geographic information system (GIS) analyses. The study area is in the Powder River Basin of north central Wyoming, an area that has been undergoing a significant increase in coalbed methane gas extractions since the late 1990s. Large volumes of water are discharged, impounded, and released during the extraction of methane gas, creating aquatic habitats that have the potential to support immature mosquito development. Landsat TM and ETM + data were initially classified into spectrally distinct water and vegetation classes, which were in turn used to identify suitable larval habitat sites. This initial habitat classification was refined using knowledge-based GIS techniques requiring spatial data layers for topography, streams, and soils to reduce the potential for overestimation of habitat. Accuracy assessment was carried out using field data and high-resolution aerial photography commensurate with one of the Landsat images. The classifier can identify likely habitat for ponds larger than 0.8 ha (2 acres) with generally satisfactory results (72.1%) with a lower detection limit of approximate to 0.4 ha (1 acre). Results show a 75% increase in potential larval habitats from 1999 to 2004 in the study area, primarily because of the large increase in small coalbed methane water discharge ponds. These results may facilitate mosquito abatement programs in the Powder River Basin with the potential for application throughout the state and region.

Zou, L.; Miller, S.N.; Schmidtmann, E.T. [University of Wyoming, Laramie, WY (United States). Dept. of Renewable Resources

2006-09-15T23:59:59.000Z

348

Coal-bed methane production in eastern Kansas: Its potential and restraints  

SciTech Connect

In 1921 and again in 1988, workers demonstrated that the high volatile A and B coals of the Pennsylvanian Cherokee Group can be produced economically from vertically drilled holes, and that some of these coals have a gas content as high as 200 ft{sup 3}/ton. Detailed subsurface mapping on a county-by-county basis using geophysical logs shows the Weir coal seam to be the thickest (up to 6 ft thick) and to exist in numerous amoeba-shaped pockets covering several thousand acres. Lateral pinch-out into deltaic sands offers a conventional gas source. New attention to geophysical logging shows most coals have a negative SP response, high resistivities, and densities of 1.6 g/cm{sup 3}. Highly permeable coals cause lost circulation during drilling and thief zones during cementing, and they are the source of abundant unwanted salt water. Low-permeability coals can be recognized by their high fracture gradients, which are difficult to explain but are documented to exceed 2.2. Current successful completions use both limited-entry, small-volume nitrogen stimulations or an open hole below production casing. Subsurface coals are at normal Mid-Continent pressures and may be free of water. Initially, some wells flow naturally without pumping. Saltwater disposal is often helped by the need for water in nearby waterflood projects and the easy availability of state-approved saltwater disposal wells in Mississippi and Arbuckle carbonates. Recent attempts to recomplete coal zones in slim-hole completions are having mixed results. The major restraints to coal-bed methane production are restricted to low permeability of the coals and engineering problems, not to the availability or gas content of the coals.

Stoeckinger, B.T.

1989-08-01T23:59:59.000Z

349

Water quality changes as a result of coalbed methane development in a Rocky mountain watershed  

SciTech Connect

Coalbed methane (CBM) development raises serious environmental concerns. In response, concerted efforts have been made to collect chemistry, salinity, and sodicity data on CBM produced water. However, little information on changes of stream water quality resulting from directly and/or indirectly received CBM produced water is available in the literature. The objective of this study was to examine changes in stream water quality, particularly sodicity and salinity, due to CBM development in the Powder River watershed, which is located in the Rocky Mountain Region and traverses the states of Wyoming and Montana. To this end, a retrospective analysis of water quality trends and patterns was conducted using data collected from as early as 1946 up to and including 2002 at four U.S. Geological Survey gauging stations along the Powder River. Trend analysis was conducted using linear regression and Seasonal Kendall tests, whereas, Tukey's test for multiple comparisons was used to detect changes in the spatial pattern. The results indicated that the CBM development adversely affected the water quality in the Powder River. First, the development elevated the stream sodicity, as indicated by a significant increase trend of the sodium adsorption ratio. Second, the development tended to shrink the water quality differences among the three downstream stations but to widen the differences between these stations and the farthest upstream station. In contrast, the development had only a minor influence on stream salinity. Hence, the CBM development is likely an important factor that can be managed to lower the stream sodicity. The management may need to take into account that the effects of the CBMdevelopment were different from one location to another along the Powder River.

Wang, X.; Melesse, A.M.; McClain, M.E.; Yang, W. [Tarleton State University, Stephenville, TX (USA)

2007-12-15T23:59:59.000Z

350

Optimization of coalbed-methane-reservoir exploration and development strategies through integration of simulation and economics  

SciTech Connect

The unique properties and complex characteristics of coalbed methane (CBM) reservoirs, and their consequent operating strategies, call for an integrated approach to be used to explore for and develop coal plays and prospects economically. An integrated approach involves the use of sophisticated reservoir, wellbore, and facilities modeling combined with economics and decision-making criteria. A new CBM prospecting tool (CPT) was generated by combining single-well (multilayered) reservoir simulators with a gridded reservoir model, Monte Carlo (MC) simulation, and economic modules. The multilayered reservoir model is divided into pods, representing relatively uniform reservoir properties, and a 'type well' is created for each pod. At every MC iteration, type-well forecasts are generated for the pods and are coupled with economic modules. A set of decision criteria contingent upon economic outcomes and reservoir characteristics is used to advance prospect exploration from the initial exploration well to the pilot and development stages. A novel approach has been used to determine the optimal well spacing should prospect development be contemplated. CPT model outcomes include a distribution of after-tax net present value (ATNPV), mean ATNPV (expected value), chance of economic success (Pe), distribution of type-well and pod gas and water production, reserves, peak gas volume, and capita. Example application of CPT to a hypothetical prospect is provided. An integrated approach also has been used to assist with production optimization of developed reservoirs. For example, an infill-well locating tool (ILT) has been constructed to provide a quick-look evaluation of infill locations in a developed reservoir. An application of ILT to a CBM reservoir is provided.

Clarkson, C.R.; McGovern, J.M.

2005-12-15T23:59:59.000Z

351

Estimation of methane flux offshore SW Taiwan and the influence of tectonics on gas hydrate accumulation  

E-Print Network (OSTI)

Estimation of methane flux offshore SW Taiwan and the influence of tectonics on gas hydrate simulating reflectors (BSRs) imply the potential existence of gas hydrates offshore southwestern Taiwan that the fluxes are very high in offshore southwestern Taiwan. The depths of the SMI are different at sites GH6

Lin, Andrew Tien-Shun

352

Injection into coal seams for simultaneous CO{sub 2} mitigation and enhanced recovery of coalbed methane. Topical report, March 1995--March 1996  

SciTech Connect

The overall objective of this task is to test the technical viability of injecting CO{sub 2} into the Fruitland Coal to displace methane from the coal and to mitigate CO{sub 2} emissions that are a consequence of primary coalbed methane production from surrounding wells in the area. To evaluate this technical viability, a field test was conducted and the test is being interpreted using data measured in WRI`s laboratory, as well as using Amoco`s state-of-the-art coalbed methane simulator. Also, a second pilot of the process is being evaluated using the simulator. Ultimately, the technology developed will be applied to a Wyoming coal.

Carlson, F.M.; Mones, C.G.; Johnson, L.A.; Barbour, F.A.; Fahy, L.J.

1997-09-01T23:59:59.000Z

353

U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production  

U.S. Energy Information Administration (EIA) Indexed Site

Area: U.S. Federal Offshore U.S. Federal Offshore, Pacific (California) Federal Offshore, Gulf of Mexico, LA & AL Federal Offshore, Gulf of Mexico, TX Alaska Lower 48 States Alabama Arkansas California CA, Coastal Region Onshore CA, Los Angeles Basin Onshore CA, San Joaquin Basin Onshore CA, State Offshore Colorado Florida Kansas Kentucky Louisiana North Louisiana LA, South Onshore LA, State Offshore Michigan Mississippi Montana New Mexico NM, East NM, West New York North Dakota Ohio Oklahoma Pennsylvania Texas TX, RRC District 1 TX, RRC District 2 Onshore TX, RRC District 3 Onshore TX, RRC District 4 Onshore TX, RRC District 5 TX, RRC District 6 TX, RRC District 7B TX, RRC District 7C TX, RRC District 8 TX, RRC District 8A TX, RRC District 9 TX, RRC District 10 TX, State Offshore Utah Virginia West Virginia Wyoming Miscellaneous Period:

354

Geological and hydrogeological controls on the accumulation of coalbed methane in the Weibei field, southeastern Ordos Basin  

Science Journals Connector (OSTI)

Abstract Commercial exploration and production of coalbed methane (CBM) in the Weibei field, Ordos Basin, China has rapidly increased since 2010. The Weibei field has become one of the most productive CBM areas in China. However, relatively few studies have investigated the migration of gas and water in the coal reservoir and their controls on the gas accumulation. This study conducts stable isotope analyses and quality tests for groundwater samples, discusses the relationships between the fluid flow pathways and tectonics, and concludes by discussing the geological and hydrological controls on potential gas accumulation in the Weibei field. The coalbed groundwaters contain primarily sodium and bicarbonate and are effectively devoid of sulfate, calcium and magnesium. The groundwaters are typically freshwater, with total dissolved solids (TDS) values ranging from 814 to 2657 mg/L. Differences in hydrogeology and structural geology divide the study area into four gas domains. In the northern Hancheng area, the predominant northwest flow of groundwater has resulted in higher gas content in the west (> 12 m3/t) than in the east (8–12 m3/t), even though the coals in the east have high thermal maturity (2.1%–2.3% Ro). The area with the highest gas content (> 16 m3/t) is in the region near the downthrown side of the Xuefeng–Nan Thrust Fault in the northern Hancheng area, and the fault forms a barrier to the northwestward flow of groundwater. The area with the lowest gas content (gas has been flushed out of the coals due to a reduction of hydrostatic pressure and active groundwater flow from the east. Structural and hydrodynamic mechanisms, especially the intensity of the hydrodynamic activity and the groundwater flow pathways, are important for gas accumulation in the Weibei field.

Yanbin Yao; Dameng Liu; Taotao Yan

2014-01-01T23:59:59.000Z

355

Coalbed methane stimulation techniques: Mechanisms and applicability. Topical report, August 1991-July 1993  

SciTech Connect

Increased pore pressure around a wellbore during injection into a coalbed reservoir can cause increased stresses, degradation in mechanical properties and plastic deformation. These near-wellbore effects can lead to elevated breakdown and treatment pressures during hydraulic fracturing and alternatively can promote cavity evolution and conductivity-connectivity alteration during dynamic openhole cavitation. Laboratory experimentation and field data interpretation are provided to support these contentions. Practical considerations for controlling excessive pressure during hydraulic fracturing are suggested as are similar considerations for maximizing cavity growth, deliverability, applicability, and formation evaluation.

Khodaverdian, M.F.

1994-11-01T23:59:59.000Z

356

Matrix Shrinkage and Swelling Effects on Economics of Enhanced Coalbed Methane Production and CO2 Sequestration in Coal  

SciTech Connect

Increases in CO2 levels in the atmosphere and their contributions to global climate change have been a major concern. It has been shown that CO2 injection can enhance the methane recovery from coal. Accordingly, sequestration costs can be partially offset by the value added product. Indeed, coal seam sequestration may be profitable, particularly with the introduction of incentives for CO2 sequestration. Hence, carbon dioxide sequestration in unmineable coals is a very attractive option, not only for environmental reasons, but also for possible economic benefits. Darcy flow through cleats is an important transport mechanism in coal. Cleat compression and permeability changes due to gas sorption desorption, changes of effective stress, and matrix swelling and shrinkage introduce a high level of complexity into the feasibility of a coal sequestration project. The economic effects of carbon dioxide-induced swelling on permeabilities and injectivities has received little (if any) detailed attention. Carbon dioxide and methane have different swelling effects on coal. In this work, the Palmer-Mansoori model for coal shrinkage and permeability increases during primary methane production was re-written to also account for coal swelling caused by carbon dioxide sorption. The generalized model was added to PSU-COALCOMP, a dual porosity reservoir simulator for primary and enhanced coalbed methane production. A standard five-spot of vertical wells and representative coal properties for Appalachian coals were used.[1] Simulations and sensitivity analyses were performed with the modified simulator for nine different parameters, including coal seam and operational parameters and economic criteria. The coal properties and operating parameters that were varied included Young’s modulus, Poisson’s ratio, the cleat porosity, and the injection pressure. The economic variables included CH4 price, CO2 cost, CO2 credit, water disposal cost, and interest rate. Net present value analyses of the simulation results included profits due to methane production, and potential incentives for CO2 sequestered. This work shows that for some coal-property values, the compressibility and cleat porosity of coal may be more important than more purely economic criteria.

Gorucu, F.B.; Jikich, S.A.; Bromhal, G.S.; Sams, W.N.; Ertekin, T.; Smith, D.H.

2005-09-01T23:59:59.000Z

357

A dynamic prediction model for gas-water effective permeability in unsaturated coalbed methane reservoirs based on production data  

Science Journals Connector (OSTI)

Abstract Effective permeability of gas and water in coalbed methane (CBM) reservoirs is vital during CBM development. However, few studies have investigated it for unsaturated CBM reservoirs rather than saturated CBM reservoirs. In this work, the dynamic prediction model (PM-Corey model) for average gas-water effective permeability in two-phase flow in saturated CBM reservoirs was improved to describe unsaturated CBM reservoirs. In the improved effective permeability model, Palmer et al. absolute permeability model segmented based on critical desorption pressure and Chen et al. relative permeability model segmented based on critical water saturation were introduced and coupled comprehensively under conditions with the identical reservoir pressures and the identical water saturations through production data and the material balance equations (MBEs) in unsaturated CBM reservoirs. Taking the Hancheng CBM field as an example, the differences between the saturated and unsaturated effective permeability curves were compared. The results illustrate that the new dynamic prediction model could characterize not only the stage of two-phase flow but also the stage of single-phase water drainage. Also, the new model can accurately reflect the comprehensive effects of the positive and negative effects (the matrix shrinking effect and the effective stress effect) and the gas Klinkenberg effect of coal reservoirs, especially for the matrix shrinkage effect and the gas Klinkenberg effect, which can improve the effective permeability of gas production and render the process more economically. The new improved model is more realistic and practical than previous models.

Junlong Zhao; Dazhen Tang; Hao Xu; Yanjun Meng; Yumin Lv; Shu Tao

2014-01-01T23:59:59.000Z

358

Geological controls on prediction of coalbed methane of No. 3 coal seam in Southern Qinshui Basin, North China  

Science Journals Connector (OSTI)

In order to better understand the geological controls on coalbed methane (CBM) in Southern Qinshui basin (SQB), North China, geological surveys and laboratory experiments, including coal petrology analysis, proximate analysis and methane adsorption/desorption, were conducted. Results show that the coals from the SQB contain 0.59–3.54% moisture, 3.5–15.54% ash yield, 73.62–88.92% fixed carbon and 2.14–4.04% hydrogen, with C/H ratios in the range of 19.96–36.25. The vitrinite reflectance (Ro,m) ranges from 1.95 to 3.49%. The coals are composed of 18.5–97.4% vitrinite and 2.4–81.4% inertinite. The geologic structures, coal-bearing strata and coal depositional environment were studied by both field geological research and laboratory tests. A positive relationship is found between CBM content and basin hydrodynamics, in which CBM easily concentrates in the groundwater stagnant zone because of the water pressure. Furthermore, integrated geographical information system (GIS) and analytical hierarchy fuzzy prediction method (AHP) were used to evaluate the CBM resources in the SQB. The results show that the amount of CBM associated with the No. 3 coal seam in the SQB is 3.62 × 1011 m3. The CBM resource concentration (gas-in-place per square kilometer) in the SQB is in the range of (0.72–2.88) × 108 m3/km2, with an average of 1.21 × 108 m3/km2, which decreases from Zhengzhuang coal district to Shitou fault and from Fanzhuang coal district to the margins of the basin. The best prospective targets for CBM production are likely located in the southwest/northwest Zhengzhuang and central Hudi coal districts.

Yidong Cai; Dameng Liu; Yanbin Yao; Junqian Li; Yongkai Qiu

2011-01-01T23:59:59.000Z

359

Volumetric strain associated with methane desorption and its impact on coalbed gas production from deep coal seams  

SciTech Connect

For deep coal seams, significant reservoir pressure drawdown is required to promote gas desorption because of the Langmuir-type isotherm that typifies coals. Hence, a large permeability decline may occur because of pressure drawdown and the resulting increase in effective stress, depending on coal properties and the stress field during production. However, the permeability decline can potentially be offset by the permeability enhancement caused by the matrix shrinkage associated with methane desorption. The predictability of varying permeability is critical for coalbed gas exploration and production-well management. We have investigated quantitatively the effects of reservoir pressure and sorption-induced volumetric strain on coal-seam permeability with constraints from the adsorption isotherm and associated volumetric strain measured on a Cretaceous Mesaverde Group coal (Piceance basin) and derived a stress-dependent permeability model. Our results suggest that the favorable coal properties that can result in less permeability reduction during earlier production and an earlier strong permeability rebound (increase in permeability caused by coal shrinkage) with methane desorption include (1) large bulk or Young's modulus; (2) large adsorption or Langmuir volume; (3) high Langmuir pressure; (4) high initial permeability and dense cleat spacing; and (5) low initial reservoir pressure and high in-situ gas content. Permeability variation with gas production is further dependent on the orientation of the coal seam, the reservoir stress field, and the cleat structure. Well completion with injection of N2 and displacement of CH{sub 4} only results in short-term enhancement of permeability and does not promote the overall gas production for the coal studied.

Cui, X.J.; Bustin, R.M. [University of British Columbia, Vancouver, BC (Canada). Dept. of Earth & Ocean Science

2005-09-01T23:59:59.000Z

360

H. R. 2998: A bill to amend the Natural Gas Act to permit the development of coalbed methane gas in areas where its development has been impeded or made impossible by uncertainty and litigation over ownership rights, and for other purposes, introduced in the US House of Representatives, One Hundred Second Congress, First Session, July 23, 1991  

SciTech Connect

This bill would direct the Secretary of Energy to compile a list of affected states which are determined to be states in which disputes, uncertainty, or litigation exist or potentially exists regarding the ownership of coalbed methane; in which the development of significant deposits of coalbed methane may be impeded by such disputes; in which statutory or regulatory procedures permitting and encouraging development of coalbed methane prior to final resolution of disputes are not in place; and in which extensive development of coalbed methane does not exist. Colorado, Montana, New Mexico, Wyoming, Utah, Virginia, and Alabama are excluded from such a list since they currently have development of coalbed methane. Until the Secretary of Energy publishes a different list, the affected states are West Virginia, Pennsylvania, Kentucky, Ohio, Tennessee, Indiana, and Illinois, effective on the date of enactment of this bill.

Not Available

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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361

Field-project designs for carbon dioxide sequestration and enhanced coalbed methane production  

SciTech Connect

Worldwide concerns about global warming and possible contributions to it from anthropogenic carbon dioxide have become important during the past several years. Coal seams may make excellent candidates for CO{sub 2} sequestration; coal-seam sequestration could enhance methane production and improve sequestration economics. Reservoir-simulation computations are an important component of any engineering design before carbon dioxide is injected underground. We have performed such simulations for a hypothetical pilot-scale project in representative coal seams. In these simulations we assume four horizontal production wells that form a square, that is, two wells drilled at right angles to each other forming two sides of a square, with another pair of horizontal wells similarly drilled to form the other two sides. Four shorter horizontal wells are drilled from a vertical well at the center of the square, forming two straight lines orthogonal to each other. By modifying coal properties, especially sorption rate, we have approximated different types of coals. By varying operational parameters, such as injector length, injection well pressure, time to injection, and production well pressure, we can evaluate different production schemes to determine an optimum for each coal type. Any optimization requires considering a tradeoff between total CO{sub 2} sequestered and the rate of methane production. Values of total CO{sub 2} sequestered and methane produced are presented for multiple coal types and different operational designs. 30 refs., 11 figs., 1 tab.

W. Neal Sams; Grant Bromhal; Sinisha Jikich; Turgay Ertekin; Duane H. Smith [EG& amp; G Technical Services, Morgantown, WV (United States). National Energy Technology Laboratory

2005-12-01T23:59:59.000Z

362

Carbon Dioxide Transport and Sorption Behavior in Confined Coal Cores for Enhanced Coalbed Methane and CO2 Sequestration  

SciTech Connect

Measurements of sorption isotherms and transport properties of CO2 in coal cores are important for designing enhanced coalbed methane/CO2 sequestration field projects. Sorption isotherms measured in the lab can provide the upper limit on the amount of CO2 that might be sorbed in these projects. Because sequestration sites will most likely be in unmineable coals, many of the coals will be deep and under considerable lithostatic and hydrostatic pressures. These lithostatic pressures may significantly reduce the sorption capacities and/or transport rates. Consequently, we have studied apparent sorption and diffusion in a coal core under confining pressure. A core from the important bituminous coal Pittsburgh #8 was kept under a constant, three-dimensional external stress; the sample was scanned by X-ray computer tomography (CT) before, then while it sorbed, CO2. Increases in sample density due to sorption were calculated from the CT images. Moreover, density distributions for small volume elements inside the core were calculated and analyzed. Qualitatively, the computerized tomography showed that gas sorption advanced at different rates in different regions of the core, and that diffusion and sorption progressed slowly. The amounts of CO2 sorbed were plotted vs. position (at fixed times) and vs. time (for various locations in the sample). The resulting sorption isotherms were compared to isotherms obtained from powdered coal from the same Pittsburgh #8 extended sample. The results showed that for this single coal at specified times, the apparent sorption isotherms were dependent on position of the volume element in the core and the distance from the CO2 source. Also, the calculated isotherms showed that less CO2 was sorbed than by a powdered (and unconfined) sample of the coal. Changes in density distributions during the experiment were also observed. After desorption, the density distribution of calculated volume elements differed from the initial distribution, suggesting hysteresis and a possible rearrangement of coal structure due to CO2 sorption.

Jikich, S.A.; McLendon, T.R.; Seshadri, K.S.; Irdi, G.A.; Smith, D.H.

2007-11-01T23:59:59.000Z

363

A multicomponent, two-phase-flow model for CO{sub 2} storage and enhanced coalbed-methane recovery  

SciTech Connect

Injection of CO{sub 2} into deep unminable coal seams is an option for geological storage of CO{sub 2} and may enhance the recovery of CH{sub 4} in these systems, making coal reservoirs interesting candidates for sequestration. New analytical solutions are presented for two-phase, three- and four-component flow with volume change on mixing in adsorbing systems. We analyze the simultaneous flow of water and gas containing multiple adsorbing components. The displacement problem is solved by the method of characteristics. Mixtures of N{sub 2}, CH{sub 4}, CO{sub 2}, and H{sub 2}O are used to represent enhanced coalbed-methane (ECBM) recovery processes. The displacement behavior is demonstrated to be strongly dependent on the relative adsorption strength of the gas components. In ternary systems, two types of solutions result. When a gas rich in CO{sub 2} displaces a less strongly adsorbing gas (such as CH{sub 4}), a shock solution is obtained. As the injected gas propagates through the system, CO{sub 2} is removed from the mobile phase by adsorption, while desorbed gas propagates ahead of the CO{sub 2} front. The adsorption of CO{sub 2} reduces the flow velocity of the injected gas, delaying breakthrough and allowing for more CO{sub 2} to be sequestered per volume of CH{sub 4} produced. For injection gases rich in N{sub 2}, a decrease in partial pressure is required to displace the preferentially adsorbed CH{sub 4} and a rarefaction solution results. In quaternary displacements with injection-gas mixtures of CO{sub 2} and N{sub 2}, the relative adsorption strength of the components results in solutions that exhibit features of both the N{sub 2}-rich and CO{sub 2}-rich ternary displacements. Analytical solutions for ECBM recovery processes provide insight into the complex interplay of adsorption, phase behavior, and convection.

Seto, C.J.; Jessen, K.; Orr, F.M. [University of Southern California, Los Angeles, CA (United States)

2009-03-15T23:59:59.000Z

364

Microbial degradation of sedimentary organic matter associated with shale gas and coalbed methane in eastern Illinois Basin (Indiana), USA  

Science Journals Connector (OSTI)

Molecular biodegradation indices for extracts from five Pennsylvanian coals and six New Albany Shale (Devonian – Mississippian) samples from the eastern part of the Illinois Basin help constrain relationships between the degradation of biomarkers and the generation of coalbed methane and shale gas. Investigation of these gas source rocks of varying thermal maturity from different depths facilitates evaluation of the association of microbial degradation with biogenic gas formation distinct from thermogenic processes. Extensive biodegradation of both aliphatic and aromatic hydrocarbons is observed in the coal extracts, whereas in shale extracts only short-chain (C15–C19) n-alkanes from the shallowest depth appear to be microbially altered with minimal evidence for losses of acyclic isoprenoid alkanes and aromatic hydrocarbons. By contrast, biodegradation of aromatic hydrocarbons, specifically alkylated naphthalenes and phenanthrenes, occurs in coal extracts in concert with losses of n-alkanes attributable to microbial activity. Thus, the progress of hydrocarbon biodegradation in coals differs from the sequence recognized in petroleum where the effects of microbial alteration of aromatic constituents only appear after extensive losses of aliphatic compounds. The extent of hydrocarbon biodegradation in these coals also decreases with depth, as recorded by the ?(nC25–nC30) index (i.e. abundance relative to 17?(H), 21?(H)-hopane) among the aliphatic constituents and several aromatic compounds (methyl-, dimethyl-, and trimethylnaphthalenes, phenanthrene, and trimethyl- and tetramethylphananthrenes). However, the depth variations in the distributions of aliphatic and aromatic hydrocarbons in the shale extracts primarily reflect the effects of thermal maturity rather than biodegradation. Overall, variations in the extent and patterns of biomarker biodegradation among coals and shales likely reflect their distinct microbial consortia that can be attributed to differences in (i) surviving microorganisms and inoculations from meteoric water, (ii) the characteristics of the sedimentary organic matter, especially the preponderance of aromatic constituents in coals, and (iii) the accessibility to that substrate through pores and cleats. These results help constrain the processes involved in biodegradation and controls on its extent, which, in turn, assist in recognizing sites favorable for methanogenesis and improved estimates of biogenic gas resources in the Illinois Basin.

Ling Gao; Simon C. Brassell; Maria Mastalerz; Arndt Schimmelmann

2013-01-01T23:59:59.000Z

365

Potential for CO2 Sequestration and Enhanced Coalbed Methane Production, Blue Creek Field, NW Black Warrior Basin, Alabama  

E-Print Network (OSTI)

Carbon dioxide (CO2) is a primary source of greenhouse gases. Injection of CO2 from power plants near coalbed reservoirs is a win-win method to reducing emissions of CO2 to the atmosphere. Limited studies have investigated CO2 sequestration...

He, Ting

2011-02-22T23:59:59.000Z

366

Production characteristics and drainage optimization of coalbed methane wells: A case study from low-permeability anthracite hosted reservoirs in southern Qinshui Basin, China  

Science Journals Connector (OSTI)

Abstract Monitoring the production from 94 coalbed methane (CBM) wells in the southern part of the Qinshui Basin of China this study demonstrates production characteristics of CBM wells, and how the incorrect production system, including improper water drainage rates and wellhead pressures, can lead to diminished gas production. Using data from these wells our results suggest that high-production rate wells, medium-production rate wells, low-production rate wells, and drainage wells, are controlled by drainage conditions in addition to the well location and structural geology. The analysis of drainage parameters shows that the maximum wellhead pressure should be maintained around 1.5 MPa before stable production, and between 0.10 MPa and 0.30 MPa after stable production. The most efficient average water production rate is approximately 4 m3/day before gas production and should be maintained near 1 m3/day during gas production. Initial daily average water production rate should be maintained around 1.5 m3/day. Maximum water production rate should be regulated between 4 and 17 m3/day. The rate of water level reduction should be within 4 m/d and drainage time should be maintained for 50–200 days prior to gas production. Implementation of these optimal drainage parameters will promote and sustain peak gas production for several years. In addition, reservoirs with adequate permeability, > 0.1 mD, are ideal for electric submersible pump systems while sucker-rod pumps are better suited for reservoirs with poor permeability. The combination of these operating conditions and the appropriate pumps optimizes the extraction efficiency and recovery of coalbed methane from the anthracitic coals in the Qinshui Basin.

Huihu Liu; Shuxun Sang; Michael Formolo; Mengxi Li; Shiqi Liu; Hongjie Xu; Shikai An; Junjun Li; Xingzhen Wang

2013-01-01T23:59:59.000Z

367

Coalbed Methane Production  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 0 2005-2012 Arkansas 3 3 3 3 4 2 2005-2012 California 0 0 0 0 0 0 2005-2012 Colorado 519 497 498 533 516 486 1989-2012 Florida 0 0 0 0 0 0 2005-2012 Kansas 38 47 43...

368

Effects of matrix shrinkage and swelling on the economics of enhanced-coalbed-methane production and CO{sub 2} sequestration in coal  

SciTech Connect

In this work, the Palmer-Mansoori model for coal shrinkage and permeability increases during primary methane production was rewritten to also account for coal swelling caused by CO{sub 2} sorption. The generalized model was added to a compositional, dual porosity coalbed-methane reservoir simulator for primary (CBM) and ECBM production. A standard five-spot of vertical wells and representative coal properties for Appalachian coals was used. Simulations and sensitivity analyses were performed with the modified simulator for nine different parameters, including coal seam and operational parameters and economic criteria. The coal properties and operating parameters that were varied included Young's modulus, Poisson's ratio, cleat porosity, and injection pressure. The economic variables included CH{sub 4}, price, Col Cost, CO{sub 2} credit, water disposal cost, and interest rate. Net-present value (NPV) analyses of the simulation results included profits resulting from CH{sub 4}, production and potential incentives for sequestered CO{sub 2}, This work shows that for some coal seams, the combination of compressibility, cleat porosity, and shrinkage/swelling of the coal may have a significant impact on project economics.

Gorucu, F.B.; Jikich, S.A.; Bromhal, G.S.; Sams, W.N.; Ertekin, T.; Smith, D.H. [Penn State University, University Park, PA (United States)

2007-08-15T23:59:59.000Z

369

Utah coalbed gas exploration poised for growth  

SciTech Connect

Coalbed methane production in eastern Utah is growing despite a relaxed pace of exploratory drilling. Leasing has been active the past 2 years, but a delay in issuance of a federal environmental impact statement could retard drilling. Only 19 new wells began producing coalbed gas during 1995, but gas production increased from existing wells as dewatering progressed. The US Bureau of Land Management will allow limited exploration but no field development on federal lands until the EIS is completed, possibly as early as this month. The paper discusses production of coalbed methane in Utah.

Petzet, G.A.

1996-08-05T23:59:59.000Z

370

Quarterly Review of Methane from Coal-Seams Technology. Volume 8, Number 4, July 1991. Report for October-December 1990  

SciTech Connect

Contents include reports on: Powder River Basin, Wyoming and Montana; Piceance Basin, Colorado; Raton Basin, Colorado and New Mexico; Black Warrior Basin, Alabama; Coalbed Methane Development in the Appalachian Basin; Geologic Evaluation of Critical Production Parameters for Coalbed Methane Resources; Reservoir Engineering and Analysis; Coordinated Laboratory Studies in Support of Hydraulic Fracturing of Coalbed Methane; Physical Sciences Coalbed Methane Research; Coalbed Methane Opportunities in Alberta.

McBane, R.A.; Schwochow, S.D.; Stevens, S.H.

1991-01-01T23:59:59.000Z

371

METHANE IN SUBSURFACE: MATHEMATICAL MODELING AND COMPUTATIONAL CHALLENGES  

E-Print Network (OSTI)

advanced models of adsorption occuring in coalbed methane recovery processes, and discuss the underlying methods, hysteresis, coalbed methane, mean-field equi- librium models AMS(MOS) subject classifications. 76 applications important for global climate and energy studies, namely Enhanced Coalbed Methane (ECBM) recovery

Peszynska, Malgorzata

372

Coalbed Natural Gas Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications Environmental Science Division Argonne National Laboratory Observations on a Montana Water Quality Proposal argonne_comments.pdf 585 KB Comments from James A. Slutz Deputy Assistant Secretary Oil and Natural Gas To the Secretary, Board of Environmental Review Montana Department of Environmental Quality BER_Comments_letter.pdf 308 KB ALL Consulting Coalbed Methane Primer: New Source of Natural Gas–Environmental Implications Background and Development in the Rocky Mountain West CBMPrimerFinal.pdf 18,223 KB ALL Consulting Montana Board of Oil & Gas Conservation Handbook on Best Management Practices and Mitigation Strategies for Coal Bed Methane in the Montana Portion of the Powder River Basin April 2002 CBM.pdf 107,140 KB ALL Consulting Montana Board of Oil & Gas Conservation

373

Hydraulic fracturing and wellbore completion of coalbed methane wells in the Powder River Basin, Wyoming: Implications for water and gas production  

SciTech Connect

Excessive water production (more than 7000 bbl/month per well) from many coalbed methane (CBM) wells in the Powder River Basin of Wyoming is also associated with significant delays in the time it takes for gas production to begin. Analysis of about 550 water-enhancement activities carried out during well completion demonstrates that such activities result in hydraulic fracturing of the coal. Water-enhancement activities, consists of pumping 60 bbl of water/min into the coal seam during approximately 15 min. This is done to clean the well-bore and to enhance CBM production. Hydraulic fracturing is of concern because vertical hydraulic fracture growth could extend into adjacent formations and potentially result in excess CBM water production and inefficient depressurization of coals. Analysis of the pressure-time records of the water-enhancement tests enabled us to determine the magnitude of the least principal stress (S{sub 3}) in the coal seams of 372 wells. These data reveal that because S{sub 3} switches between the minimum horizontal stress and the overburden at different locations, both vertical and horizontal hydraulic fracture growth is inferred to occur in the basin, depending on the exact location and coal layer. Relatively low water production is observed for wells with inferred horizontal fractures, whereas all of the wells associated with excessive water production are characterized by inferred vertical hydraulic fractures. The reason wells with exceptionally high water production show delays in gas production appears to be inefficient depressurization of the coal caused by water production from the formations outside the coal. To minimize CBM water production, we recommend that in areas of known vertical fracture propagation, the injection rate during the water-enhancement tests should be reduced to prevent the propagation of induced fractures into adjacent water-bearing formations.

Colmenares, L.B.; Zoback, M.D. [Stanford University, Stanford, CA (United States). Dept. of Geophysics

2007-01-15T23:59:59.000Z

374

Reuse of Produced Water from CO2 Enhanced Oil Recovery, Coal-Bed Methane, and Mine Pool Water by Coal-Based Power Plants  

SciTech Connect

Power generation in the Illinois Basin is expected to increase by as much as 30% by the year 2030, and this would increase the cooling water consumption in the region by approximately 40%. This project investigated the potential use of produced water from CO{sub 2} enhanced oil recovery (CO{sub 2}-EOR) operations; coal-bed methane (CBM) recovery; and active and abandoned underground coal mines for power plant cooling in the Illinois Basin. Specific objectives of this project were: (1) to characterize the quantity, quality, and geographic distribution of produced water in the Illinois Basin; (2) to evaluate treatment options so that produced water may be used beneficially at power plants; and (3) to perform a techno-economic analysis of the treatment and transportation of produced water to thermoelectric power plants in the Illinois Basin. Current produced water availability within the basin is not large, but potential flow rates up to 257 million liters per day (68 million gallons per day (MGD)) are possible if CO{sub 2}-enhanced oil recovery and coal bed methane recovery are implemented on a large scale. Produced water samples taken during the project tend to have dissolved solids concentrations between 10 and 100 g/L, and water from coal beds tends to have lower TDS values than water from oil fields. Current pretreatment and desalination technologies including filtration, adsorption, reverse osmosis (RO), and distillation can be used to treat produced water to a high quality level, with estimated costs ranging from $2.6 to $10.5 per cubic meter ($10 to $40 per 1000 gallons). Because of the distances between produced water sources and power plants, transportation costs tend to be greater than treatment costs. An optimization algorithm was developed to determine the lowest cost pipe network connecting sources and sinks. Total water costs increased with flow rate up to 26 million liters per day (7 MGD), and the range was from $4 to $16 per cubic meter ($15 to $60 per 1000 gallons), with treatment costs accounting for 13 â?? 23% of the overall cost. Results from this project suggest that produced water is a potential large source of cooling water, but treatment and transportation costs for this water are large.

Chad Knutson; Seyed Dastgheib; Yaning Yang; Ali Ashraf; Cole Duckworth; Priscilla Sinata; Ivan Sugiyono; Mark Shannon; Charles Werth

2012-04-30T23:59:59.000Z

375

Simulation assessment of CO2 sequestration potential and enhanced methane recovery in low-rank coalbeds of the Wilcox Group, east-central Texas  

E-Print Network (OSTI)

Carbon dioxide (CO2) from energy consumption is a primary source of greenhouse gases. Injection of CO2 from power plants in coalbed reservoirs is a plausible method for reducing atmospheric emissions, and it can have the additional benefit...

Hernandez Arciniegas, Gonzalo

2006-10-30T23:59:59.000Z

376

Reuse of Produced Water from CO2 Enhanced Oil Recovery, Coal-Bed Methane, and Mine Pool Water by Coal-Based Power Plants: ProMIS/Project No.: DE-NT0005343  

NLE Websites -- All DOE Office Websites (Extended Search)

seyed Dastgheib seyed Dastgheib Principal Investigator Illinois State Geological Survey 615 E. Peabody Drive Champaign, Illinois 61820-6235 217-265-6274 dastgheib@isgs.uius.edu Reuse of PRoduced WateR fRom co 2 enhanced oil RecoveRy, coal-Bed methane, and mine Pool WateR By coal-Based PoWeR Plants: PRomis /PRoject no. : de-nt0005343 Background Coal-fired power plants are the second largest users of freshwater in the United States. In Illinois, the thermoelectric power sector accounts for approximately 84 percent of the estimated 14 billion gallons per day of freshwater withdrawals and one-third of the state's 1 billion gallons per day of freshwater consumption. Illinois electric power generation capacity is projected to expand 30 percent by 2030, increasing water consumption by

377

2005 international coalbed methane symposium  

SciTech Connect

Papers are under the following topics: well completions; diversity; geology/resource assessment; reservoirs; and carbon dioxide sequestration.

NONE

2005-07-01T23:59:59.000Z

378

File:EIA-coalbed-gas.pdf | Open Energy Information  

Open Energy Info (EERE)

coalbed-gas.pdf coalbed-gas.pdf Jump to: navigation, search File File history File usage Coalbed Methane Fields, Lower 48 States Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 2.28 MB, MIME type: application/pdf) Description Coalbed Methane Fields, Lower 48 States Sources Energy Information Administration Related Technologies Natural Gas Creation Date 2009-04-08 Extent National Countries United States UN Region Northern America File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 17:53, 20 December 2010 Thumbnail for version as of 17:53, 20 December 2010 1,650 × 1,275 (2.28 MB) MapBot (Talk | contribs) Automated bot upload You cannot overwrite this file.

379

Quarterly review of methane from coal-seams technology. Volume 7, Number 3, July-September 1989  

SciTech Connect

The report contains: sources of coal well information; Powder River Basin, Wyoming; greater Green River coal region, Wyoming and Colorado; Piceance Basin, Colorado; San Juan Basin, Colorado and New Mexico; Raton Basin, Colorado and New Mexico; Black Warrior Basin, Alabama; the United States coalbed methane resource; western cretaceous coal seams project; multiple coal seams project; spalling and the development of a hydraulic fracturing strategy for coal; geologic evaluation of critical production parameters for coalbed methane resources; coalbed methane opportunities in Alberta; the coalbed methane forum; eastern coalbed methane forum.

Not Available

1990-01-01T23:59:59.000Z

380

L-FVM for Unsteady Seepage Flow in Low Permeability Coalbed  

SciTech Connect

The significant feature of coalbed in China is the low permeability. A new unsteady seepage flow model isdeveloped for the low permeability coalbed by considering the startup pressure gradient and methane desorption effect.Since the complexity of the problem, a new method which we call it ''L-FVM'' is developed, based on comparing the normal numerical calculation methods and comprehension research on FVM. The results show that L-FVM has the same precission but higher calculating velocity than normal FVM. This result is very important for monitoring the area pressure drawdown in coalbed methane engineering

Liu, Y. W.; Su, Z. L. [Key Laboratory of Environment Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 (China); Niu, C. C.; Cai, Q.; Li, H. S. [Beijing Technology and Business University, Beijing 100048 (China); Zhao, P. H.; Zhou, X. H.; Lu, Q. [Coalbed Methane Ltd. Company, Petrochina, Beijing 100028 (China)

2011-09-28T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Methanation  

Science Journals Connector (OSTI)

Methanation describes the heterogeneous, gas-catalytic or biological synthesis of CH4 from H2 and CO/CO2...or in case of the biological path, alternatively from other carbon sources. It is the second substantial,...

Markus Lehner; Robert Tichler…

2014-01-01T23:59:59.000Z

382

Japan Completes First Offshore Production Test .............................1  

E-Print Network (OSTI)

1 CONTENTS Japan Completes First Offshore Production Test .............................1 New Reservoirs in the Offshore Caribbean Region of Colombia..........................................7 CSEM Survey of a Methane Vent Site, Offshore West Svalbard...12 Pressure Core Analysis Tools Used

383

CONTENTS Japan Completes First Offshore  

NLE Websites -- All DOE Office Websites (Extended Search)

Japan Completes First Offshore Japan Completes First Offshore Production Test .............................1 New Seismic Data Over Known Hydrate Occurrences in the Deepwater Gulf of Mexico .........3 Gas Hydrate Reservoirs in the Offshore Caribbean Region of Colombia ..........................................7 CSEM Survey of a Methane Vent Site, Offshore West Svalbard...12 Pressure Core Analysis Tools Used to Characterize Hydrate- Bearing Sediments from The Nankai Trough ..............................19 Using Noble Gas Signatures to Fingerprint Gas Streams Derived from Dissociating Methane Hydrate .......................................... 23 Announcements ...................... 27 * North Slope Oil and Gas Lands Set Aside for Methane Hydrate Research * 2014 Offshore Technology Conference to Have Sessions on

384

Thermogenic and secondary biogenic gases, San Juan Basin, Colorado and New Mexico - Implications for coalbed gas producibility  

SciTech Connect

The objectives of this paper are to (1) describe the types and the major components of coalbed gases, (2) evaluate the variability of Fruitland coalbed gas composition across the basin, (3) assess factors affecting coalbed gas origin and composition, (4) determine the timing and extent of gas migration and entrapment, and (5) suggest application of these results to coalbed gas producibility. Data from more than 750 Fruitland coalbed gas wells were used to make gas-composition maps and to evaluate factors controlling gas origin. The gas data were divided into overpressured, underpressured, and transitional categories based on regional pressure regime. Also, [delta][sup 13]C isotopic values from 41 methane, 7 ethane and propane, 13 carbon dioxide, and 10 formation-water bicarbonate samples were evaluated to interpret gas origin. The data suggests that only 25-50% of the gas produced in the high-productivity fairway was generated in situ during coalification. 82 refs., 14 figs., 3 tabs.

Scott, A.R.; Kaiser, W.R. (Univ. of Texas, Austin, TX (United States)); Ayers, W.B. Jr. (Taurus Exploration, Inc., Birmingham, AL (United States))

1994-08-01T23:59:59.000Z

385

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect

The authors' long-term goal is to develop accurate prediction methods for describing the adsorption behavior of gas mixtures on solid adsorbents over complete ranges of temperature, pressure, and adsorbent types. The originally-stated, major objectives of the current project are to: (1) measure the adsorption behavior of pure CO{sub 2}, methane, nitrogen, and their binary and ternary mixtures on several selected coals having different properties at temperatures and pressures applicable to the particular coals being studied, (2) generalize the adsorption results in terms of appropriate properties of the coals to facilitate estimation of adsorption behavior for coals other than those studied experimentally, (3) delineate the sensitivity of the competitive adsorption of CO{sub 2}, methane, and nitrogen to the specific characteristics of the coal on which they are adsorbed; establish the major differences (if any) in the nature of this competitive adsorption on different coals, and (4) test and/or develop theoretically-based mathematical models to represent accurately the adsorption behavior of mixtures of the type for which measurements are made. As this project developed, an important additional objective was added to the above original list. Namely, we were encouraged to interact with industry and/or governmental agencies to utilize our expertise to advance the state of the art in coalbed adsorption science and technology. As a result of this additional objective, we participated with the Department of Energy and industry in the measurement and analysis of adsorption behavior as part of two distinct investigations. These include (a) Advanced Resources International (ARI) DOE Project DE-FC26-00NT40924, ''Adsorption of Pure Methane, Nitrogen, and Carbon Dioxide and Their Mixtures on Wet Tiffany Coal'', and (b) the DOE-NETL Project, ''Round Robin: CO{sub 2} Adsorption on Selected Coals''. These activities, contributing directly to the DOE projects listed above, also provided direct synergism with the original goals of our work. Specific accomplishments of this project are summarized below in three broad categories: experimentation, model development, and coal characterization.

K.A.M. Gasem; R.L. Robinson, Jr.; J.E. Fitzgerald; Z. Pan; M. Sudibandriyo

2003-04-30T23:59:59.000Z

386

California Coalbed Methane Proved Reserves, Reserves Changes...  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 0 0 2005-2012 Adjustments 0 0 0 0 2009-2012 Revision Increases 0 0 0 0 2009-2012 Revision Decreases 0 0 0 0 2009-2012 Sales 0 0 0 0 2009-2012 Acquisitions 0 0 0 0 2009-2012...

387

California Coalbed Methane Proved Reserves, Reserves Changes...  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 0 2005-2013 Adjustments 0 0 0 0 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

388

Louisiana Coalbed Methane Proved Reserves, Reserves Changes,...  

Annual Energy Outlook 2012 (EIA)

9 0 0 0 0 0 2005-2013 Adjustments 0 0 0 0 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 8 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

389

Pennsylvania Coalbed Methane Proved Reserves, Reserves Changes...  

Gasoline and Diesel Fuel Update (EIA)

102 131 129 124 106 161 2005-2013 Adjustments 0 -1 1 120 68 2009-2013 Revision Increases 29 2 1 0 0 2009-2013 Revision Decreases 1 0 2 123 0 2009-2013 Sales 17 0 1 0 0 2009-2013...

390

Miscellaneous Coalbed Methane Proved Reserves, Reserves Changes...  

Annual Energy Outlook 2012 (EIA)

41 17 16 17 13 23 2005-2013 Adjustments 1 2 3 -2 13 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 24 2 0 1 0 2009-2013 Sales 0 0 1 0 0 2009-2013 Acquisitions...

391

Biogeochemistry of Microbial Coal-Bed Methane  

E-Print Network (OSTI)

.1146/annurev-earth-040610-133343 Copyright c 2011 by Annual Reviews. All rights reserved 0084 known as coalification; progresses from peat through lignite, subbituminous coal, bituminous coal

Macalady, Jenn

392

Acetogens and Acetoclastic Methanosarcinales Govern Methane Formation in Abandoned Coal Mines  

Science Journals Connector (OSTI)

...2004. Coalbed methane in the Ruhr Basins, Germany: a renewable energy resource? Org. Geochem. 35 :1537-1549. 34. Ulrich...Biogenic origin of coalbed gas in the northern Gulf of Mexico Coastal Plain, U.S.A. Int. J. Coal Geol. 76...

Sabrina Beckmann; Tillmann Lueders; Martin Krüger; Frederick von Netzer; Bert Engelen; Heribert Cypionka

2011-04-01T23:59:59.000Z

393

Terr. Atmos. Ocean. Sci., Vol. 17, No. 4, 933-950, December 2006 Methane Venting in Gas Hydrate Potential Area Offshore of SW  

E-Print Network (OSTI)

Potential Area Offshore of SW Taiwan: Evidence of Gas Analysis of Water Column Samples Tsanyao Frank Yang 1 areas offshore of SW Taiwan for analysis of dissolved gases. Some these samples show unusually high-shore and offshore of southwestern Taiwan (e.g., Chow et al. 2000; Yang et al. 2004; Chiu et al. 2006). The gases

Lin, Andrew Tien-Shun

394

Study of parameters affecting enhanced coal bed methane  

SciTech Connect

Laboratory and field scale trials conducted so far indicate that injection of CO{sub 2} and N{sub 2} into deep coalbeds has the potential to enhance coalbed methane (ECBM) recovery while simultaneously sequestering CO{sub 2}. The work has identified that the fundamental processes involved in CO{sub 2} sequestration/CBM recovery in deep coalbeds are not fully understood and further research is needed to advance this technology. ECBM is affected by several parameters; prominent among them are coal characteristics, in-situ conditions prevailing in deep coalbeds, and changes arising from the interaction of coal with various fluids. These parameters do not act independently, thereby making it difficult to isolate their impacts separately. An attempt has been made in this article to classify these parameters and understand their role in ECBM. Past work in this area is reviewed and the future work that is critical for an improved understanding of ECBM recovery is discussed.

Katyal, S.; Valix, M.; Thambimuthu, K. [University of Sydney, Sydney, NSW (Australia). Dept. of Chemical Engineering

2007-02-15T23:59:59.000Z

395

Assessment of undiscovered carboniferous coal-bed gas resources of the Appalachian Basin and Black Warrior Basin Provinces, 2002  

SciTech Connect

Coalbed methane (CBM) occurs in coal beds of Mississippian and Pennsylvanian (Carboniferous) age in the Appalachian basin, which extends almost continuously from New York to Alabama. In general, the basin includes three structural subbasins: the Dunkard basin in Pennsylvania, Ohio, and northern West Virginia; the Pocahontas basin in southern West Virginia, eastern Kentucky, and southwestern Virginia; and the Black Warrior basin in Alabama and Mississippi. For assessment purposes, the Appalachian basin was divided into two assessment provinces: the Appalachian Basin Province from New York to Alabama, and the Black Warrior Basin Province in Alabama and Mississippi. By far, most of the coalbed methane produced in the entire Appalachian basin has come from the Black Warrior Basin Province. 8 refs., 1 fig., 1 tab.

Milici, R.C.; Hatch, J.R.

2004-09-15T23:59:59.000Z

396

Chapter 10 - Coal and Coalbed Gas: Outlook  

Science Journals Connector (OSTI)

Abstract The future of coal and coalbed gas future is intertwined as source and reservoir rocks. Coal generates coalbed gas during coalification (e.g. thermogenic gas) and methanogenesis (biogenic gas). These gas types occur as singular and mixed accumulations. Accumulation of biogenic coalbed gas has received worldwide research and development interests on sustaining production. The new coal-to-biogenic coalbed gas technology centers on stimulating indigenous microbes in coal and associated groundwater with bioengineered nutrients and amendments to “farm” gas from abandoned wells and non-gas-producing coals. Coal mainly as a basic fuel for electric power generation since the Industrial Revolution continues to be utilized despite environmental concerns. The outlook of coal is dimmed in the United States where natural gas has replaced power generation. However, in Asia and Europe continued economic growth is going to be fueled by coal and coalbed gas as liquefied natural gas will rely on combustion from more efficient, high-temperature power plants in the future.

Romeo M. Flores

2014-01-01T23:59:59.000Z

397

Utah Coalbed Methane Proved Reserves, Reserves Changes, and Production  

Annual Energy Outlook 2012 (EIA)

893 725 718 679 518 523 2000-2013 Adjustments 0 8 9 7 -3 2009-2013 Revision Increases 9 77 46 21 69 2009-2013 Revision Decreases 110 30 31 134 11 2009-2013 Sales 0 0 130 0 0...

398

New Mexico Coalbed Methane Proved Reserves, Reserves Changes...  

Annual Energy Outlook 2012 (EIA)

3,991 3,646 3,532 3,358 2,772 2,856 1989-2013 Adjustments -9 261 -170 56 41 2009-2013 Revision Increases 443 562 562 255 1,362 2009-2013 Revision Decreases 353 565 279 602 587...

399

TX, RRC District 10 Coalbed Methane Proved Reserves, Reserves...  

Gasoline and Diesel Fuel Update (EIA)

8 7 2005-2013 Adjustments 0 0 0 9 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

400

New York Coalbed Methane Proved Reserves, Reserves Changes, and...  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 0 0 2005-2013 Adjustments 0 0 0 0 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Colorado Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

8,238 7,348 6,485 6,580 5,074 4,391 1989-2013 Adjustments 0 106 73 181 75 2009-2013 Revision Increases 126 937 698 343 789 2009-2013 Revision Decreases 566 1,557 367 1,566 1,023...

402

Texas Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 81 57 2005-2013 Adjustments 0 0 0 92 -16 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0...

403

West Virginia Coalbed Methane Proved Reserves, Reserves Changes...  

Annual Energy Outlook 2012 (EIA)

246 220 220 139 107 113 2005-2013 Adjustments 0 0 -1 1 0 2009-2013 Revision Increases 19 15 35 3 15 2009-2013 Revision Decreases 38 25 47 10 1 2009-2013 Sales 0 0 50 17 0 2009-2013...

404

Oklahoma Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

511 338 325 274 439 440 2005-2013 Adjustments 1 27 27 764 -200 2009-2013 Revision Increases 81 82 91 39 280 2009-2013 Revision Decreases 216 84 98 550 12 2009-2013 Sales 6 6 40 21...

405

Ohio Coalbed Methane Proved Reserves, Reserves Changes, and Production  

Gasoline and Diesel Fuel Update (EIA)

5 2006 2007 2008 2009 2010 View History Proved Reserves as of Dec. 31 0 1 1 1 0 0 2005-2010 Adjustments 0 0 2009-2010 Revision Increases 0 0 2009-2010 Revision Decreases 1 0...

406

Virginia Coalbed Methane Proved Reserves, Reserves Changes, and...  

Annual Energy Outlook 2012 (EIA)

1,851 2,261 1,752 1,623 1,535 1,387 2005-2013 Adjustments 0 1 26 49 -12 2009-2013 Revision Increases 219 16 87 30 87 2009-2013 Revision Decreases 0 459 199 71 201 2009-2013 Sales 0...

407

Arkansas Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

31 22 28 21 10 13 2005-2013 Adjustments 0 1 0 0 0 2009-2013 Revision Increases 3 9 0 1 5 2009-2013 Revision Decreases 0 1 3 10 0 2009-2013 Sales 31 0 0 0 0 2009-2013 Acquisitions...

408

Kansas Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

301 163 258 228 183 189 2005-2013 Adjustments -3 -22 -6 53 -35 2009-2013 Revision Increases 8 157 24 21 71 2009-2013 Revision Decreases 107 0 14 85 0 2009-2013 Sales 0 0 0 0 0...

409

Lower 48 States Coalbed Methane Proved Reserves, Reserves Changes...  

Gasoline and Diesel Fuel Update (EIA)

20,798 18,578 17,508 16,817 13,591 12,392 2005-2013 Adjustments -14 784 -15 1,327 -309 2009-2013 Revision Increases 1,563 2,589 2,071 971 3,123 2009-2013 Revision Decreases 2,486...

410

NM, West Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

3,461 3,172 3,009 2,851 2,410 2,851 2005-2013 Adjustments -9 257 -167 56 51 2009-2013 Revision Increases 443 490 551 255 1,291 2009-2013 Revision Decreases 323 565 277 485 587...

411

TX, RRC District 3 Onshore Coalbed Methane Proved Reserves, Reserves...  

Annual Energy Outlook 2012 (EIA)

71 47 2005-2013 Adjustments 0 0 0 81 -17 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

412

NM, East Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

530 474 523 507 362 5 2005-2013 Adjustments 0 4 -3 0 -10 2009-2013 Revision Increases 0 72 11 0 71 2009-2013 Revision Decreases 30 0 2 117 0 2009-2013 Sales 0 0 0 0 409 2009-2013...

413

North Louisiana Coalbed Methane Proved Reserves, Reserves Changes...  

Gasoline and Diesel Fuel Update (EIA)

9 0 0 0 0 0 2005-2013 Adjustments 0 0 0 0 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 8 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

414

Wyoming Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

,781 2,328 2,683 2,539 1,736 1,810 2000-2013 Adjustments -4 329 98 -32 -84 2009-2013 Revision Increases 609 575 504 242 412 2009-2013 Revision Decreases 725 140 539 541 105...

415

North Dakota Coalbed Methane Proved Reserves, Reserves Changes...  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 0 2005-2013 Adjustments 0 0 0 0 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

416

Alabama Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

1,727 1,342 1,298 1,210 1,006 413 1989-2013 Adjustments 0 61 -45 21 -166 2009-2013 Revision Increases 17 134 23 16 33 2009-2013 Revision Decreases 316 51 86 150 54 2009-2013 Sales...

417

Coalbed methane simulator designed for the independent producers.  

E-Print Network (OSTI)

??The purpose of this study is to build a PC-Windows based model for two-phase one-dimension water & gas system based on the formulation of the… (more)

Jalali, Jalal.

2004-01-01T23:59:59.000Z

418

Montana Coalbed Methane Proved Reserves, Reserves Changes, and...  

Annual Energy Outlook 2012 (EIA)

75 37 64 25 11 16 2005-2013 Adjustments 0 11 -30 17 10 2009-2013 Revision Increases 0 23 0 0 0 2009-2013 Revision Decreases 29 0 3 28 4 2009-2013 Sales 0 0 0 0 0 2009-2013...

419

Florida Coalbed Methane Proved Reserves, Reserves Changes, and...  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 0 2005-2013 Adjustments 0 0 0 0 0 2009-2013 Revision Increases 0 0 0 0 0 2009-2013 Revision Decreases 0 0 0 0 0 2009-2013 Sales 0 0 0 0 0 2009-2013 Acquisitions 0 0 0 0 0...

420

Single-well Modeling of Coalbed Methane Production  

E-Print Network (OSTI)

curves. Further solution of a specific CBM single-well problem and parametric study for evaluation impact of separate parameters were conducted. Focus of the studies was on well production forecasting, effect of mechanical properties of coal...

Martynova, Elena

2014-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Tribology offshore  

SciTech Connect

The papers presented in this book deal with the performance and reliability of plant and materials in offshore engineering operations. The rigours of the North Sea environment have proved to be particularly strenuous for offshore equipment. The lessons learned in the last few years of exploration are relevant to offshore sites throughout the world. The topics covered include lifting gear, compressors, pumps, valves and seals, lubricants and lubrication, underwater equipment, friction and wear associated with the anchorage of rigs and platforms, sliding contract and condition monitoring offshore.

Not Available

1985-01-01T23:59:59.000Z

422

Offshore Wind Power USA  

Energy.gov (U.S. Department of Energy (DOE))

The Offshore Wind Power USA conference provides the latest offshore wind market updates and forecasts.

423

Low temperature iron- and nickel-catalyzed reactions leading to coalbed gas formation  

SciTech Connect

Hydrocarbon hydrogenolysis and CO{sub 2} hydrogenation in the presence of Fe/SiO{sub 2} and Ni/SiO{sub 2} catalysts were evaluated as potential mechanisms contributing to natural gas formation in coalbeds. The hydrocarbons used as reactants in hydrogenolysis included butane, octane, 1-octene, and 1-dodecene. The reactions carried out in a laboratory batch reactor produced gas that contained methane concentrations greater than 90%, which resembles the composition of natural gas. Reaction temperatures were selected to resemble natural coalbed conditions. Evidence is presented to show that iron and nickel minerals, which can be present in coals at levels of 2,000 and 10 ppm, respectively, can become active under geologic conditions. The oxides (Fe{sub 2}O{sub 3} and NiO) used as precursors of the active catalysts (Fe and Ni metals) were reduced at 200 C under a hydrogen atmosphere. Moessbauer spectroscopy showed that ca. 6% of the iron oxide was converted to the metal; in the case of nickel, oxygen titration showed that the extent of reduction to the metal was ca. 29%. The resultant fractions of the active metals in coals are adequate to catalyze generation of appreciable amounts of methane over geologic time.

Medina, J.C.; Butala, S.J.; Bartholomew, C.H.; Lee, M.L.

2000-02-01T23:59:59.000Z

424

Methane Main  

NLE Websites -- All DOE Office Websites (Extended Search)

the the Methane Hydrate Advisory Committee on Methane Hydrate Issues and Opportunities Including Assessment of Uncertainty of the Impact of Methane Hydrate on Global Climate Change December 2002 Report of the Methane Hydrate Advisory Committee on Methane Hydrate Issues and Opportunities Including Assessment of Uncertainty of the Impact of Methane Hydrate on Global Climate Change December 2002 i CONTENTS What is Methane Hydrate? ............................................................................................. 1 Why Methane Hydrate Matters for the United States? ..................................................... 4 Resource Potential of Methane Hydrate .......................................................................... 5 Implications of Methane Hydrate on Safety and Seafloor Stability

425

Illinois Natural Gas Gross Withdrawals from Coalbed Wells (Million...  

U.S. Energy Information Administration (EIA) Indexed Site

data. Release Date: 12312014 Next Release Date: 1302015 Referring Pages: Natural Gas Gross Withdrawals from Coalbed Wells Illinois Natural Gas Gross Withdrawals and...

426

South Dakota Natural Gas Gross Withdrawals from Coalbed Wells...  

U.S. Energy Information Administration (EIA) Indexed Site

data. Release Date: 12312014 Next Release Date: 1302015 Referring Pages: Natural Gas Gross Withdrawals from Coalbed Wells South Dakota Natural Gas Gross Withdrawals and...

427

Offshore structures  

Science Journals Connector (OSTI)

... SIR,-We have had some experience with modelling offshore structures in the laboratory, and wish to call attention to the need for better ... have already occurred have been serious enough, but the failure of one of the giant rigs or platforms now being planned would be a catastrophe of unprecedented proportions.

CHESLEY J. POSEY; RICHARD SILVESTER

1975-11-20T23:59:59.000Z

428

A National Offshore Wind Strategy: Creating an Offshore Wind...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A National Offshore Wind Strategy: Creating an Offshore Wind Energy Industry in the United States A National Offshore Wind Strategy: Creating an Offshore Wind Energy Industry in...

429

Review of China's Low-Carbon City Initiative and Developments in the Coal Industry  

E-Print Network (OSTI)

Institute. China Coalbed Methane Clearinghouse (CBMC). 2004.Research. 2010. “Coalbed Methane in China. ” Standards

Fridley, David

2014-01-01T23:59:59.000Z

430

Intercomparison of numerical simulation codes for geologic disposal of CO2  

E-Print Network (OSTI)

Study for Enhanced Coalbed Methane Recovery Processes, Partcapabilities are available. Coalbed methane simulators are

2002-01-01T23:59:59.000Z

431

Estimating carbon dioxide emissions factors for the California electric power sector  

E-Print Network (OSTI)

extraction (including coalbed methane release), processing,extraction (including coalbed methane release), processing,

Marnay, Chris; Fisher, Diane; Murtishaw, Scott; Phadke, Amol; Price, Lynn; Sathaye, Jayant

2002-01-01T23:59:59.000Z

432

Coalbed gases and hydrocarbon source rock potential of upper Carboniferous coal-bearing strata in upper Silesian Coal Basin, Poland  

SciTech Connect

The Upper Silesian Coal Basin (USCB) is one of the major Upper Carboniferous coal basins in the world. Its coalbed gas reserves to the depths of 1,000 m are estimated to be about 350 billion cubic meters (about 12.4 TCF). Coalbed gases in the USCB are variable in both molecular and stable isotope composition [{delta}{sup 13}C(CH{sub 4}), {delta}D(CH{sub 4}), {delta}{sup 13}C(C{sub 2}H{sub 6}), {delta}{sup 13}C(C{sub 3}H{sub 8}), {delta}{sup 13}C(CO{sub 2})]. Such variability suggests the effects of both primary reactions operating during the generation of gases and secondary processes such as mixing and migration. Coalbed gases are mostly thermogenic methane in which depth-related isotopic fractionation has resulted from migration but not from mixing with the microbial one. The stable carbon isotope composition indicates that the carbon dioxide, ethane and higher gaseous hydrocarbons were generated during the bituminous coal stage of the coalification process. The main stage of coalbed gas generation occurred during the Variscan orogeny, and generation was completed after the Leonian and Asturian phases of this orogeny. The coals and carbonaceous shales have high gas generation potential but low potential for generation and expulsion of oil compared to the known Type III source rocks elsewhere. In general, the carbonaceous shales have slightly higher potential for oil generation, but probably would not be able to exceed expulsion thresholds necessary to expel economic quantities of oil.

Kotarba, M.J.J. [Univ. of Mining and metallurgy, Cracow (Poland); Clayton, J.L.; Rice, D.D. [Geological Survey, Denver, CO (United States)

1996-12-31T23:59:59.000Z

433

Geological Characterization of California's Offshore  

E-Print Network (OSTI)

Geological Characterization of California's Offshore Carbon Dioxide Storage Capacity ENVIRONMENTAL offshore onto the continental shelf, and these offshore sections constitute additional storage capacity potential of Californias offshore subsurface environment. California offshore sedimentary basins (in green

434

Sandia National Laboratories: Offshore Wind RD&D: Large Offshore...  

NLE Websites -- All DOE Office Websites (Extended Search)

Large Offshore Rotor Development Offshore Wind RD&D: Large Offshore Rotor Development Overview Sandia National Laboratories Wind Energy Technologies Department, creates and...

435

Stored CO2 and Methane Leakage Risk Assessment and Monitoring Tool Development: CO2 Capture Project Phase 2 (CCP2)  

SciTech Connect

The primary project goal is to develop and test tools for optimization of ECBM recovery and geologic storage of CO{sub 2} in coalbeds, in addition to tools for monitoring CO{sub 2} sequestration in coalbeds to support risk assessment. Three critical topics identified are (1) the integrity of coal bed methane geologic and engineered systems, (2) the optimization of the coal bed storage process, and (3) reliable monitoring and verification systems appropriate to the special conditions of CO{sub 2} storage and flow in coals.

Dan Kieki

2008-09-30T23:59:59.000Z

436

Das Methan  

Science Journals Connector (OSTI)

Bei Einwirkung von Salzsäure auf Aluminiumkarbid entwickelt sich ein farbloses Gas, welches, angezündet, mit schwach leuchtender Flamme brennt: Es ist Methan.

A. Lipp

1928-01-01T23:59:59.000Z

437

Terr. Atmos. Ocean. Sci., Vol. 17, No. 4, 829-843, December 2006 Gas Hydrate Stability Zone in Offshore Southern Taiwan  

E-Print Network (OSTI)

in Offshore Southern Taiwan Wu-Cheng Chi 1, *, Donald L. Reed 2 , and Chih-Chin Tsai 3 (Manuscript received 17 in meeting natural gas demand in the future. To study the feasibility of recovering methane from the offshore hydrates in the sediments offshore of southern Taiwan. We used a dense grid of 6-channel and 120-channel

Lin, Andrew Tien-Shun

438

Sandia National Laboratories: Offshore Wind  

NLE Websites -- All DOE Office Websites (Extended Search)

EnergyOffshore Wind Offshore Wind Sandia executes several projects in support of the DOE Offshore Wind program, which address unique R&D needs related to offshore siting and, in...

439

Financing coal mine, methane recovery and utilization projects  

SciTech Connect

The article describes types and sources of funding that may be available to project developers and investors that are interested in pursuing coal mine methane (CMM) project opportunities particularly in developing countries or economies in transition. It briefly summarizes prefeasibility and feasibility studies and technology demonstrations. It provides a guide to key parties involved in project financing (equity, debt or carbon financing) as well as project risk reduction support. This article provides an update to the information contained in two previous guides - Catalogue of Coal Mine Methane Project Finance Sources (2002) and A Guide to Financing Coalbed Methane Projects (1997) - both available on the CMOP web site http://www.epa.gov/cmop/resources/reports/finance.html.

NONE

2006-07-01T23:59:59.000Z

440

Formation and retention of methane in coal  

SciTech Connect

The formation and retention of methane in coalbeds was studied for ten Utah coal samples, one Colorado coal sample and eight coal samples from the Argonne Premium Coal Sample Bank.Methane gas content of the Utah and Colorado coals varied from zero to 9 cm{sup 3}/g. The Utah coals were all high volatile bituminous coals. The Colorado coal was a gassy medium volatile bituminous coal. The Argonne coals cover a range or rank from lignite to low volatile bituminous coal and were used to determine the effect of rank in laboratory studies. The methane content of six selected Utah coal seams and the Colorado coal seam was measured in situ using a special sample collection device and a bubble desorbometer. Coal samples were collected at each measurement site for laboratory analysis. The cleat and joint system was evaluated for the coal and surrounding rocks and geological conditions were noted. Permeability measurements were performed on selected samples and all samples were analyzed for proximate and ultimate analysis, petrographic analysis, {sup 13}C NMR dipolar-dephasing spectroscopy, and density analysis. The observed methane adsorption behavior was correlated with the chemical structure and physical properties of the coals.

Hucka, V.J.; Bodily, D.M.; Huang, H.

1992-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Assessment of CO2 Sequestration and ECBM Potential of U.S. Coalbeds  

SciTech Connect

In October, 2000, the U.S. Department of Energy, through contractor Advanced Resources International, launched a multi-year government-industry R&D collaboration called the Coal-Seq project. The Coal-Seq project is investigating the feasibility of CO{sub 2} sequestration in deep, unmineable coalseams, by performing detailed reservoir studies of two enhanced coalbed methane recovery (ECBM) field projects in the San Juan basin. The two sites are the Allison Unit, operated by Burlington Resources, and into which CO{sub 2} is being injected, and the Tiffany Unit, operating by BP America, into which N{sub 2} is being injected (the interest in understanding the N{sub 2}-ECBM process has important implications for CO{sub 2} sequestration via flue-gas injection). The purposes of the field studies are to understand the reservoir mechanisms of CO{sub 2} and N{sub 2} injection into coalseams, demonstrate the practical effectiveness of the ECBM and sequestration processes, an engineering capability to simulate them, and to evaluate sequestration economics. In support of these efforts, laboratory and theoretical studies are also being performed to understand and model multi-component isotherm behavior, and coal permeability changes due to swelling with CO{sub 2} injection. This report describes the results of an important component of the overall project, applying the findings from the San Juan Basin to a national scale to develop a preliminary assessment of the CO{sub 2} sequestration and ECBM recovery potential of U.S. coalbeds. Importantly, this assessment improves upon previous investigations by (1) including a more comprehensive list of U.S. coal basins, (2) adopting technical rationale for setting upper-bound limits on the results, and (3) incorporating new information on CO{sub 2}/CH{sub 4} replacement ratios as a function of coal rank. Based on the results of the assessment, the following conclusions have been drawn: (1) The CO{sub 2} sequestration capacity of U.S. coalbeds is estimated to be about 90 Gt. Of this, about 38 Gt is in Alaska (even after accounting for high costs associated with this province), 14 Gt is in the Powder River basin, 10 Gt is in the San Juan basin, and 8 Gt is in the Greater Green River basin. By comparison, total CO{sub 2} emissions from power generation plants is currently about 2.2 Gt/year. (2) The ECBM recovery potential associated with this sequestration is estimated to be over 150 Tcf. Of this, 47 Tcf is in Alaska (even after accounting for high costs associated with this province), 20 Tcf is in the Powder River basin, 19 Tcf is in the Greater Green River basin, and 16 Tcf is in the San Juan basin. By comparison, total CBM recoverable resources are currently estimated to be about 170 Tcf. (3) Between 25 and 30 Gt of CO{sub 2} can be sequestered at a profit, and 80-85 Gt can be sequestered at costs of less than $5/ton. These estimates do not include any costs associated with CO{sub 2} capture and transportation, and only represent geologic sequestration. (4) Several Rocky Mountain basins, including the San Juan, Raton, Powder River and Uinta appear to hold the most favorable conditions for sequestration economics. The Gulf Coast and the Central Appalachian basin also appear to hold promise as economic sequestration targets, depending upon gas prices. (5) In general, the 'non-commercial' areas (those areas outside the main play area that are not expected to produce primary CBM commercially) appear more favorable for sequestration economics than the 'commercial' areas. This is because there is more in-place methane to recover in these settings (the 'commercial' areas having already been largely depleted of methane).

Scott R. Reeves

2003-03-31T23:59:59.000Z

442

Integrated process for coalbed brine disposal  

SciTech Connect

A brine disposal process is described that converts the brine stream of a coalbed gas producing site into clean water for agricultural use, combustion products and water vapor that can be released into the atmosphere and dry solids that can be recycled for industrial consumption. The process uses a reverse osmosis unit, a submerged combustion evaporator and a pulse combustion dryer. Pretreatment of the brine feedstream is necessary to prevent fouling of the membranes of the reverse osmosis unit and to separate from the brine stream hazardous metal and other constituents that may make the permeate from the reverse osmosis unit unsuitable for agricultural or other use. A chemical modeling code is used to calculate the saturation states of solids that may precipitate and foul the reverse osmosis membranes. Sodium carbonate is added to the brine to precipitate carbonates of Ba, Ca, Mg and Sr prior to filtration, acidification, and passage into the reverse osmosis unit. Optimization of the process in terms of types and amounts of additives is possible with analysis using the modeling code. The minimum amounts of additives to prevent scaling are calculated. In a typical operation, a brine feedstream of 1,000 m{sup 3}/day (6,290 bpd) that may have a total dissolved salt concentration (TDS) of 7,000 ppm will be separated into a permeate stream of 750 m{sup 3}/day (4,718 bpd) with a TDS of 400 ppm and a concentrated brine stream of 250 m{sup 3}/day (1,573 bpd) with a TDS of 26,800 ppm. The submerged combustion evaporator will concentrate this latter stream to a concentration of 268,000 ppm and reduce the volume to 25 m{sup 3}/day (158 bpd). The pulse combustion dryer can dry the concentrated brine mixture to a low moisture salt. Energy costs to operate the reverse osmosis unit are primarily the pumping costs.

Brandt, H. [AQUATECH Services, Inc., Fair Oaks, CA (United States)]|[California Univ., Davis, CA (United States). Dept. of Mechanical Engineering; Bourcier, W.L.; Jackson, K.J. [Lawrence Livermore National Lab., CA (United States)

1994-03-01T23:59:59.000Z

443

offshore wind farm  

Science Journals Connector (OSTI)

offshore wind farm, wind farm [‘Wind park’ which one may find on the ... engineers and should not be used. A wind farm consists of a network of wind turbines] ? Windkraftanlage f, Windpark m; Offshore

2014-08-01T23:59:59.000Z

444

Fixed Offshore Wind Turbines  

Science Journals Connector (OSTI)

In this chapter, a perspective of offshore wind farms, applied concepts for fixed offshore wind turbines, and related statistics are given. One example of a large wind farm, which is successfully operating, is st...

Madjid Karimirad

2014-01-01T23:59:59.000Z

445

Offshore wind metadata management  

Science Journals Connector (OSTI)

Offshore wind energy is gaining more and more attention from industry and research community due to its high potential in producing green energy and lowering price on electricity consumption. However, offshore wind is facing many challenges, and hence ...

Trinh Hoang Nguyen; Rocky Dunlap; Leo Mark; Andreas Prinz; Bjřrn Mo Řstgren; Trond Friisř

2014-10-01T23:59:59.000Z

446

Offshore Wind Development 2011  

Science Journals Connector (OSTI)

Growth in the European offshore market will depend principally on the ability ... manufacturing capacity, and the development of specialized offshore wind turbines with their own manufacturing supply chain are...

Mark J. Kaiser; Brian F. Snyder

2012-01-01T23:59:59.000Z

447

CONGRESSIONAL BRIEFING Offshore Wind  

E-Print Network (OSTI)

CONGRESSIONAL BRIEFING Offshore Wind Lessons Learned from Europe: Reducing Costs and Creating Jobs Thursday, June 12, 2014 Capitol Visitors Center, Room SVC 215 Enough offshore wind capacity to power six the past decade. What has Europe learned that is applicable to a U.S. effort to deploy offshore wind off

Firestone, Jeremy

448

Offshore Wind Geoff Sharples  

E-Print Network (OSTI)

Offshore Wind Geoff Sharples geoff@clearpathenergyllc.com #12;Frequently Unanswered Ques?ons · Why don't "they" build more offshore wind? · Why not make the blades bigger? · How big will turbines get? #12;Offshore Resource is Good #12

Kammen, Daniel M.

449

A New Coal-Permeability Model: Internal Swelling Stress and Fracture–Matrix Interaction  

E-Print Network (OSTI)

In: Proceedings of the Coalbed Methane Symposium, Universitynumerical simulation for coalbed-methane-recovery process.coal with enhanced coalbed methane recovery—a review. Energy

Liu, Hui-Hai; Rutqvist, Jonny

2010-01-01T23:59:59.000Z

450

Carbon dioxide reuse and sequestration: The state of the art today  

E-Print Network (OSTI)

R.J.H. Richardson, Deep coalbed methane in Alberta, Canada:gas recovery and enhanced coalbed methane recovery. Suitableprojects of enhanced coalbed methane production using CO 2

Benson, Sally M.; Dorchak, Thomas; Jacobs, Gary; Ekmann, James; Bishop, Jim; Grahame, Thomas

2000-01-01T23:59:59.000Z

451

A new coal-permeability model: Internal swelling stress and fracture-matrix interaction  

E-Print Network (OSTI)

in coal with enhanced coalbed methane recovery ? a review.Proceedings of the coalbed methane symposium, University ofProceedings of the coalbed methane symposium, University of

Liu, H.H.

2010-01-01T23:59:59.000Z

452

Gravity monitoring of CO2 movement during sequestration: Model studies  

E-Print Network (OSTI)

2 Sequestration in Coalbed Methane Reservoirs of the Black2006 International Coalbed Methane Symposium Proceedings,and the third is for a coalbed methane formation. EOR/

Gasperikova, E.

2008-01-01T23:59:59.000Z

453

Proceedings of the TOUGH Symposium 2012  

E-Print Network (OSTI)

Jeansonne, 1992, “Modeling Coalbed Methane Production WithStudy for Enhanced Coalbed Methane Recovert Processes, Partto that used in coalbed methane and follows the Langmuir

Finsterle, S.

2014-01-01T23:59:59.000Z

454

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network (OSTI)

EOR) and enhanced coalbed methane recovery (ECBMR) becauseand potential for coalbed methane. The Mannville coals areCO 2 injectivity and coalbed methane producibility. Thus,

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

455

Modeling the resolution of inexpensive, novel non-seismic geophysical monitoring tools to monitor CO2 injection into coal beds  

E-Print Network (OSTI)

Tomutsa, L. , 2005, Coalbed methane laboratory experiments,2 Sequestration in Coalbed Methane Reservoirs of the Black2006 International Coalbed Methane Symposium Proceedings,

Gasperikova, E.

2010-01-01T23:59:59.000Z

456

NETL: Methane Hydrates - DOE/NETL Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Seismic-Scale Rock Physics of Methane Hydrate Seismic-Scale Rock Physics of Methane Hydrate DE-FC26-05NT42663 Goal The goal of this project was to establish rock physics models for use in generating synthetic seismic signatures of methane hydrate reservoirs. Ultimately, the intent was to improve seismic detection and quantification of offshore and onshore methane hydrate accumulations. Performer Stanford University, Stanford, CA 94305 Background Gas hydrate reservoir characterization is, in principle, no different from traditional hydrocarbon reservoir characterization. The seismic response of the subsurface is determined by the spatial distribution of the elastic properties (properties of the subsurface that deform as seismic waves pass through it) and attenuation. By mapping changes in the elastic properties, scientists can identify geologic features, including hydrocarbon reservoirs.

457

Offshore Wind Projects | Department of Energy  

Office of Environmental Management (EM)

Offshore Wind Projects Offshore Wind Projects This report covers the Wind and Water Power Program's offshore wind energy projects from fiscal years 2006 to 2014. Offshore Wind...

458

WINDExchange Offshore Wind Webinar: Transmission Planning and...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Offshore Wind Webinar: Transmission Planning and Interconnection for Offshore Wind WINDExchange Offshore Wind Webinar: Transmission Planning and Interconnection for Offshore Wind...

459

Natural Gas Gross Withdrawals from Coalbed Wells  

Gasoline and Diesel Fuel Update (EIA)

,999,748 2,022,228 2,010,171 1,916,762 1,779,055 1,539,395 ,999,748 2,022,228 2,010,171 1,916,762 1,779,055 1,539,395 2002-2012 Alaska 0 0 0 0 0 0 2002-2012 Alaska Onshore 0 0 0 0 0 0 2007-2012 Federal Offshore Gulf of Mexico 0 0 0 0 0 0 2002-2012 Louisiana 0 0 0 0 0 0 2002-2012 Louisiana Onshore 0 0 0 0 0 0 2007-2012 New Mexico 616,485 485,682 458,805 414,894 386,262 368,682 2002-2012 Oklahoma 82,125 76,860 67,525 70,581 53,206 71,553 2002-2012 Texas 0 0 0 0 0 0 2002-2012 Texas State Offshore 0 2012-2012 Wyoming 445,665 563,274 590,205 569,667 508,739 429,731 2002-2012 Other States Other States Total 855,473 896,412 893,636 861,620 830,848 669,429 2002-2012 Alabama 114,994 112,222 107,699 103,060 95,727 90,325 2002-2012 Alabama Onshore 114,994 112,222 107,699 103,060 95,727 90,325 2007-2012

460

Engineering study of coalbed degasification in the Warrior Basin of Alabama  

SciTech Connect

This project was an engineering study of coalbed methane extraction in the Warrior Basin of Alabama. The coal lithology logs and the production histories of major degasification fields in the Warrier Basin were studied in detail. A comparative analysis of gas and water production of different wells was conducted to evaluate open hole completions and through-casing completions. A similar analysis was made to evaluate different stimulation techniques. Attempts were made to evaluate the relations between the uncemented portions. Logs from The University of Alabama's corehole program and the production well were analyzed. Laboratory experiments were conducted to establish the porosities and permeability of the cores obtained from zones adjacent to the producing zones of the University's production well. The results indicated that the water would be much lower, unless fractures have propagated into these zones. The results of water analysis show no indication of freshwater channeling. An experiment has been proposed to make a comparative evaluation of different stimulation techniques. A preliminary study has been completed to explore the possibility of using chemicals for increasing permeability in coal. Further research in this area might result in significantly improving methods for stimulation of these coal seams. 29 references, 19 figures, 5 tables.

Wang, G.C.; Tsay, F.S.; Dharwadkar, S.R.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Offshore Rankine Cycles.  

E-Print Network (OSTI)

?? The title of the thesis - "Offshore Rankine Cycles" - is very general and cover a large range of engineering fields, e.g. thermodynamic cycles… (more)

Brandsar, Jo

2012-01-01T23:59:59.000Z

462

NETL: Methane Hydrates - DOE/NETL Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

In Situ Sampling and Characterization of Naturally Occurring Methane Hydrate Using the D/V JOIDES Resolution Last Reviewed 02/05/2010 In Situ Sampling and Characterization of Naturally Occurring Methane Hydrate Using the D/V JOIDES Resolution Last Reviewed 02/05/2010 DE-FC26-01NT41329 photo of a man showing the pressure core sampler on the deck of JOIDES Resolution Pressure core sampler on deck courtesy Texas A&M University Goal The goal of the project was to characterize hydrate accumulation at Hydrate Ridge (offshore Oregon) and improve the ability to use geophysical and subsurface logging to identify hydrates. A follow-on goal was to characterize hydrate accumulation at offshore Vancouver Island, BC, Canada. Background This project focused on physically verifying the existence of hydrates at Hydrate Ridge through the collection of pressurized and non-pressurized core samples and logging data. This study developed and tested tools to

463

Offshore Structure Design and Development  

Science Journals Connector (OSTI)

...installation and operation of offshore structures for oil and gas exploration and production...service. The importance of offshore oil and gas may be judged by the...exploration investments will go to offshore prospects in future years...

1982-01-01T23:59:59.000Z

464

Foundations for offshore wind turbines  

Science Journals Connector (OSTI)

...T. Thompson Foundations for offshore wind turbines B. W. Byrne G. T...civil-engineering problems encountered for offshore wind turbines. A critical component...energy suppliers. Foundations|Offshore Wind Turbines|Renewable Energy...

2003-01-01T23:59:59.000Z

465

Novel Methane, Ethane, and Propane Oxidizing Bacteria at Marine Hydrocarbon Seeps Identified by Stable Isotope Probing  

E-Print Network (OSTI)

Novel Methane, Ethane, and Propane Oxidizing Bacteria at Marine Hydrocarbon Seeps Identified by Stable Isotope Probing Running Title: Novel Methane, Ethane, and Propane Oxidizing Bacteria Section hydrocarbons in surface sediment from the Coal Oil Point seep field, offshore Santa4 Barbara, California. After

Sessions, Alex L.

466

Natural Gas Gross Withdrawals from Coalbed Wells  

Gasoline and Diesel Fuel Update (EIA)

2002-2013 2002-2013 Alaska NA NA NA NA NA NA 2002-2013 Federal Offshore Gulf of Mexico NA NA NA NA NA NA 2002-2013 Louisiana NA NA NA NA NA NA 2002-2013 New Mexico NA NA NA NA NA NA 2002-2013 Oklahoma NA NA NA NA NA NA 2002-2013 Texas NA NA NA NA NA NA 2002-2013 Wyoming NA NA NA NA NA NA 2002-2013 Other States Other States Total NA NA NA NA NA NA 2002-2013 Alabama NA NA NA NA NA NA 2002-2013 Arizona NA NA NA NA NA NA 2002-2013 Arkansas NA NA NA NA NA NA 2006-2013 California NA NA NA NA NA NA 2002-2013 Colorado NA NA NA NA NA NA 2002-2013 Florida NA NA NA NA NA NA 2002-2013 Illinois NA NA NA NA NA NA 2006-2013 Indiana NA NA NA NA NA NA 2006-2013 Kansas NA NA NA NA NA NA 2002-2013 Kentucky

467

Sandia National Laboratories: Offshore Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications Offshore Publications Jason Magalen, Craig Jones, and Jesse Roberts, Offshore Wind Guidance Document: Oceanography and Sediment Stability, Development of a Conceptual...

468

Research and Development Concerning Coalbed Natural Gas  

SciTech Connect

The Powder River Basin in northeastern Wyoming is one of the most active areas of coalbed natural gas (CBNG) development in the western United States. This resource provides clean energy but raises environmental concerns. Primary among these is the disposal of water that is co-produced with the gas during depressurization of the coal seam. Beginning with a few producing wells in Wyoming's Powder River Basin (PRB) in 1987, CBNG well numbers in this area increased to over 13,600 in 2004, with projected growth to 20,900 producing wells in the PRB by 2010. CBNG development is continuing apace since 2004, and CBNG is now being produced or evaluated in four other Wyoming coal basins in addition to the PRB, with roughly 3500-4000 new CBNG wells permitted statewide each year since 2004. This is clearly a very valuable source of clean fuel for the nation, and for Wyoming the economic benefits are substantial. For instance, in 2003 alone the total value of Wyoming CBNG production was about $1.5 billion, with tax and royalty income of about $90 million to counties, $140 million to the state, and $27 million to the federal government. In Wyoming, cumulative CBNG water production from 1987 through December 2004 was just over 380,000 acre-feet (2.9 billion barrels), while producing almost 1.5 trillion cubic feet (tcf) of CBNG gas statewide. Annual Wyoming CBNG water production in 2003 was 74,457 acre-feet (577 million barrels). Total production of CBNG water across all Wyoming coal fields could total roughly 7 million acre-feet (55.5 billion barrels), if all of the recoverable CBNG in the projected reserves of 31.7 tcf were produced over the coming decades. Pumping water from coals to produce CBNG has been designated a beneficial water use by the Wyoming State Engineer's Office (SEO), though recently the SEO has limited this beneficial use designation by requiring a certain gas/water production ratio. In the eastern part of the PRB where CBNG water is generally of good quality, most of it is discharged to surface drainages or to soil (for irrigation). CBNG water quality generally declines when moving from the Cheyenne River drainage northwestward to the Belle Fourche, Little Powder, and Powder River drainages and in the central and western part of the PRB, most CBNG water goes to evaporation-infiltration ponds or is discharged directly to surface drainages. Concerns center on the salinity of the water, usually measured as total dissolved solids (TDS), or electrical conductivity (EC) and sodium adsorption ratio (SAR). Other management options currently in use include injection, managed irrigation (with additives to mitigate the effects of high salinity), atomization, and treatment by reverse osmosis or ion exchange. A key water quality issue is the cumulative effect of numerous CBNG water discharges on the overall water quality of basin streams. This leads to one of the most contentious issues in CBNG development in Wyoming's PRB: Montana's concern about the potential downstream effects of water quality degradation on rivers flowing north into Montana. Many of the benefits and costs associated with CBNG development have been debated, but dealing with CBNG water quantity and quality arguably has been the most difficult of all the issues. Given the importance of these issues for continued development of CBNG resources in Wyoming and elsewhere, the DOE-NETL funded project presented here focuses on CBNG co-produced water management. The research was organized around nine separate, but interrelated, technical project tasks and one administrative task (Task 1). The nine technical project tasks were pursued by separate research teams at the University of Wyoming, but all nine tasks were coordinated to the extent possible in order to maximize information gained about CBNG co-produced waters. In addition to project management in Task 1, the key research tasks included: (2) estimating groundwater recharge rates in the PRB; (3) groundwater contamination of trace elements from CBNG disposal ponds; (4) use of environmental tracers in assessing wate

William Ruckelshaus

2008-09-30T23:59:59.000Z

469

Offshore Sulfur Comes In  

Science Journals Connector (OSTI)

Offshore Sulfur Comes In ... "The deposit is a major new source of sulfur," say Hines H. Baker, president of Humble Oil, and Langbourne M. Williams, president of Freeport Sulphur. ... Humble's deposit, known as Grand Isle (Block 18), was discovered in the course of offshore oil exploration and it ranks among the most important sulfur discoveries of recent years. ...

1956-10-01T23:59:59.000Z

470

Mobility for Offshore Drilling  

Science Journals Connector (OSTI)

Mobility for Offshore Drilling ... New type unit designed by Humble Oil to operate in Gulf of Mexico in 30 to 70 feet deep water ... HUMBLE OIL & REFINING is inviting bids on construction of a new type of mobile drilling platform to be used in offshore operations. ...

1956-03-26T23:59:59.000Z

471

OFFSHORE DRILLING REVISITED  

Science Journals Connector (OSTI)

OFFSHORE DRILLING REVISITED ... Congress and the Obama Administration weigh the benefits and risks of expanded OIL AND GAS PRODUCTION ... ENERGY INDUSTRY OFFICIALS, coastal states, and environmental activists are clashing over whether Congress and the Obama Administration should allow offshore drilling for oil and natural gas in federal waters that until last year were off limits to development. ...

GLENN HESS

2009-03-23T23:59:59.000Z

472

Chapter 3 - Safety Offshore  

Science Journals Connector (OSTI)

This chapter focuses on specific issues to do with managing safety in offshore oil and gas facilities. The distinctions between drilling, pipelines and production are described. Offshore special issues include congestion, the number of people onboard, hurricanes/cyclones and dropped objects.

Ian Sutton

2014-01-01T23:59:59.000Z

473

Offshore wind energy systems  

Science Journals Connector (OSTI)

Wind energy systems deployed in the shallow but windy waters of the southern North Sea have the potential to provide more than 20% of UK electricity needs. With existing experience of windmills, and of aircraft and offshore structures, such wind energy systems could be developed within a relatively short timescale. A preliminary assessment of the economics of offshore wind energy systems is encouraging.

P Musgrove

1978-01-01T23:59:59.000Z

474

Offshore wind metadata management  

Science Journals Connector (OSTI)

Offshore wind energy is gaining more and more attention from industry and research community due to its high potential in producing green energy and lowering price on electricity consumption. However, offshore wind is facing many challenges, and hence it is still expensive to install in large scale. It therefore needs to be considered from different aspects of technologies in order to overcome these challenges. One of the problems of the offshore wind is that information comes from different sources with diversity in types and format. Besides, there are existing wind databases that should be utilised in order to enrich the knowledge base of the wind domain. This paper describes an approach to managing offshore wind metadata effectively using semantic technologies. An offshore wind ontology has been developed. The semantic gap between the developed ontology and the relational database is investigated. A prototype system has been developed to demonstrate the use of the ontology.

Trinh Hoang Nguyen; Rocky Dunlap; Leo Mark; Andreas Prinz; Bjørn Mo �stgren; Trond Friisø

2014-01-01T23:59:59.000Z

475

Controls of coal fabric on coalbed gas production and compositional shift in both field production and canister desorption tests  

SciTech Connect

The production rates of coalbed gas wells commonly vary significantly, even in the same field with similar reservoir permeability and gas content. The compositional variation in produced gas is also not everywhere predictable, although in most fields produced gas becomes progressively enriched in CO, through the production life of a reservoir, such as parts of the San Juan basin. In contrast, it is generally observed that the ratio of CO{sub 2}:CH{sub 4} declines with time during field and laboratory desorption testing of coal cores. In this study, we investigate numerically the importance of coal fabric, namely cleat spacing and aperture width, on the performance of coalbed gas wells and gas compositional shifts during production. Because of the cubic relationship between fracture permeability and fracture aperture width (and thus fracture porosity) for a given cleat permeability, the production profile of coal seams varies depending on whether the permeability is distributed among closely spaced fractures (cleat) with narrower apertures or more widely spaced fractures (cleat) with wider apertures. There is a lower fracture porosity for coal with widely spaced fractures than for coal with closely spaced fractures. Therefore, the relative permeability to gas increases more rapidly for coals with more widely spaced cleats as less dewatering from fractures is required, assuming that the fractures are initially water saturated. The enrichment of CO{sub 2} in the production gas with time occurs because of the stronger adsorption of coals for CO{sub 2} than CH{sub 4}. However, during desorption of coal cores, CO{sub 2} desorbs more rapidly than methane because desorption rate is governed more by diffusion than by sorption affinity, and CO{sub 2} has much higher effective diffusivity in microporous coals than CH{sub 4}.

Cui, X.J.; Bustin, R.M. [University of British Columbia, Vancouver, BC (Canada)

2006-03-15T23:59:59.000Z

476

A Strategy for Monitoring of Geologic Sequestration of CO2  

E-Print Network (OSTI)

such as EOR and enhanced coalbed methane recovery. Finally,disposal sites, and coalbed methane sites, as well as oil

Myer, Larry R.

2000-01-01T23:59:59.000Z

477

China energy, environment, and climate study: Background issues paper  

E-Print Network (OSTI)

mines. Releases of coalbed methane are an important sourcethat domestic gas and coalbed methane could play a much

Sinton, Jonathan E.; Fridley, David G.; Logan, Jeffrey; Guo, Yuan; Wang, Bangcheng; Xu, Qing

2000-01-01T23:59:59.000Z

478

Toward Production From Gas Hydrates: Current Status, Assessment of Resources, and Simulation-Based Evaluation of Technology and Potential  

E-Print Network (OSTI)

resources such as coalbed methane (Warner, 2007). Policies,the development of coalbed methane, which, after properly

Moridis, George J.

2008-01-01T23:59:59.000Z

479

Proceedings of the TOUGH Symposium 2009  

E-Print Network (OSTI)

coal with enhanced coalbed methane recovery—A review, Energyand CO 2 ) for modeling coalbed methane extraction. Dropping

Moridis, George J.

2010-01-01T23:59:59.000Z

480

Long-term Variations of CO2 Trapped in Different Mechanisms in Deep Saline Formations: A Case Study of the Songliao Basin, China  

E-Print Network (OSTI)

Predicted CO 2 enhanced coalbed methane recovery and CO 22 sequestration in coalbed methane (CBM) zone are Qinghai,

Zhang, Wei

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "offshore coalbed methane" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Energy Department Advances Research on Methane Hydrates - the World's  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Research on Methane Hydrates - the Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource Energy Department Advances Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource August 31, 2012 - 1:00pm Addthis Washington, DC - The Energy Department today announced the selection of 14 new research projects across 11 states that will be a part of an expanding portfolio of projects designed to increase our understanding of methane hydrates' potential as a future energy supply. Methane hydrates are 3D ice-lattice structures with natural gas locked inside, and are found both onshore and offshore - including under the Arctic permafrost and in ocean sediments along nearly every continental shelf in the world. Today's projects build on the completion of a successful, unprecedented test

482

Energy Department Advances Research on Methane Hydrates - the World's  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Department Advances Research on Methane Hydrates - the Energy Department Advances Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource Energy Department Advances Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource August 31, 2012 - 1:20pm Addthis News Media Contact (202) 586-4940 WASHINGTON, D.C. - The Energy Department today announced the selection of 14 new research projects across 11 states that will be a part of an expanding portfolio of projects designed to increase our understanding of methane hydrates' potential as a future energy supply. Methane hydrates are 3D ice-lattice structures with natural gas locked inside, and are found both onshore and offshore - including under the Arctic permafrost and in ocean sediments along nearly every continental shelf in the world.

483

Other States Natural Gas Gross Withdrawals from Coalbed Wells (Million  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Wells (Million Cubic Feet) Coalbed Wells (Million Cubic Feet) Other States Natural Gas Gross Withdrawals from Coalbed Wells (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2002 0 0 0 0 0 0 0 0 0 0 0 0 2003 5,335 4,954 5,465 5,228 5,405 5,163 4,817 5,652 5,165 5,347 4,814 5,420 2004 5,684 5,278 5,822 5,570 5,758 5,500 5,132 6,022 5,502 5,697 5,129 5,774 2005 5,889 5,469 6,033 5,771 5,967 5,699 5,318 6,240 5,702 5,903 5,315 5,983 2006 65,302 59,484 66,007 63,071 65,663 63,437 65,249 65,951 62,242 65,271 63,215 64,841 2007 72,657 65,625 72,657 70,313 72,657 70,313 72,657 72,657 70,313 72,657 70,313 72,657 2008 75,926 71,027 75,926 73,476 75,926 73,476 75,926 75,926 73,476 75,926 73,476 75,926

484

ARM - Methane Background Information  

NLE Websites -- All DOE Office Websites (Extended Search)

our atmosphere's methane levels have more than doubled in the last 200 years. These methane levels contribute to the greenhouse effect, which contributes to overall climate change....

485

offshore | OpenEI  

Open Energy Info (EERE)

offshore offshore Dataset Summary Description GIS data for offshore wind speed (meters/second). Specified to Exclusive Economic Zones (EEZ).Wind resource based on NOAA blended sea winds and monthly wind speed at 30km resolution, using a 0.11 wind sheer to extrapolate 10m - 90m. Annual average >= 10 months of data, no nulls. Source National Renewable Energy Laboratory (NREL) Date Released Unknown Date Updated Unknown Keywords GIS global NOAA NREL offshore wind wind speed Data application/zip icon Download Shapefile (zip, 18.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Other or unspecified, see optional comment below Comment Please cite NREL and NOAA Rate this dataset Usefulness of the metadata

486

Safety in Offshore Industry  

Science Journals Connector (OSTI)

A large number of accidents in offshore industry have occurred over the years. Ten of the deadliest of these accidents occurred at or on the Piper Alpha ... , the Alexander L. Kielland (a Norwegian semi-submersible

2010-01-01T23:59:59.000Z

487

Chapter 3 - Offshore Platforms  

Science Journals Connector (OSTI)

Abstract Modern offshore crude oil and natural gas exploration—the search for likely environments where crude oil and natural gas may exist in the rock formations that are beneath the surface of the waterways of the world. In addition, offshore operations include transporting crude oil and natural gas from their point of production offshore to refineries and plants on land. Very little refining of the crude oil and natural gas is carried out on the production platform. This chapter focuses on exploration, drilling, and production of crude oil and natural gas and the wide range of technologies involved as well as the additional technologies that relate to a marine environment necessary for offshore activities.

James G. Speight

2015-01-01T23:59:59.000Z

488

Magnolia Goes Offshore  

Science Journals Connector (OSTI)

Magnolia Goes Offshore ... It will be put to use in early 1956, when the company launches an attempt to locate oil in the Gulf of Mexico near the mouth of the Mississippi River. ...

1955-12-12T23:59:59.000Z

489

Session: Offshore wind  

SciTech Connect

This session at the Wind Energy and Birds/Bats workshop consisted of two presentations. Due to time constraints, a discussion period was not possible. The session addressed the current state of offshore wind energy development. The first presentation ''Monitoring Program and Results: Horns Rev and Nysted'' by Jette Gaarde summarized selected environmental studies conducted to date at operating offshore wind turbine projects in Denmark and lessons from other offshore wind developments in Europe. Wildlife impacts studies from the Danish sites focused on birds, fish, and mammals. The second presentation ''What has the U.S. Wind Industry Learned from the European Example'' by Bonnie Ram provided an update on current permit applications for offshore wind developments in the U.S. as well as lessons that may be drawn from the European experience.

Gaarde, Jette; Ram, Bonnie

2004-09-01T23:59:59.000Z

490

Coordinated studies in support of hydraulic fracturing of coalbed methane. Annual report, June 1990-October 1991  

SciTech Connect

The production of natural gas coal typically requires stimulation in the form of hydraulic fracturing. The results of hydraulic fracturing treatments have ranged from highly successful to less than satisfactory. The approach in the work has been to experimentally evaluate parameters that pertain to coal fluid interactions during hydraulic fracturing and post-frac production and then apply the findings to the selection of fracturing fluids and treatment design. Evaluated parameters include leakoff through cleats, pressure drops through cleated slots with slurries, proppant transport, conductivity, and coal matrix damage due to fracturing fluids. Some conclusions from the work include (1) 100 mesh sand alone can control leakoff through cleats; (2) coal faces alone do not increase pressure drop through fractures with slurries; (3) restrictions approaching 2 proppant diameters are required to see pressure increases; (4) borate fluid pH's of 9.5 are required for transport; (5) mixed proppant conductivities of 100 mesh and 16/30 can be 50% lower than the larger proppant; (6) guar based fracturing fluids can cause up to 90% permeability damage to the coal matrix; (7) HEC containing foams provide the best cleanup in the laboratory (only 10 to 30% damage and have shown excellent results in field trials); and (8) expanded use of COMPAS is recommended to document field results.

Penny, G.S.; Conway, M.W.

1992-04-01T23:59:59.000Z

491

Coordinated studies in support of hydraulic fracturing of coalbed methane. Annual report, November 1991-December 1992  

SciTech Connect

The purpose of the work is to characterize common and potential fracturing fluids in terms of coal-fluid interactions to identify reasons for less than satisfactory performance and to ultimately devise alternative fluids and treatment procedures to optimize production following hydraulic fracturing. The laboratory data reported herein has proven helpful in designing improved hydraulic fracturing treatments and remedial treatments in the Black Warrior Basin. Acid inhibitors, scale inhibitors, additives to improve coal relative permeability to gas, and non-damaging polymer systems for hydraulic fracturing have been screened in coal damage tests. The optimum conditions for creating field-like foams in the laboratory have been explored. Tests have been run to identify minimum polymer and surfactant concentrations for applications of foam in coal. The roll of 100 mesh sand in controlling leakoff and impairing conductivity in coal has been investigated.

Not Available

1993-04-01T23:59:59.000Z

492

Sensitivity analysis of modeling parameters that affect the dual peaking behaviour in coalbed methane reservoirs  

E-Print Network (OSTI)

such as desorption time ( ĂŹÂ?), initial gas adsorbed (Vi), fracture and matrix permabilities (kf and km), fracture and matrix porosity ( ĂŹÂ?f and ĂŹÂ?m), initial fracture and matrix pressure (to enable modeling of saturated and undersaturated reservoirs), we have...

Okeke, Amarachukwu Ngozi

2006-10-30T23:59:59.000Z

493

Production-data analysis of single-phase (gas) coalbed-methane wells  

SciTech Connect

The current work illustrates how single-well production-data-analysis (PDA) techniques, such as type curve, flowing material balance (FMB), and pressure-transient (PT) analysis, may be altered to analyze single-phase CBM wells. Examples of how reservoir inputs to the PDA techniques and subsequent calculations are modified to account for CBM-reservoir behavior are given. This paper demonstrates, by simulated and field examples, that reasonable reservoir and stimulation estimates can be obtained from PDA of CBM reservoirs only if appropriate reservoir inputs (i.e., desorption compressibility, fracture porosity) are used in the analysis. As the field examples demonstrate, type-curve, FMB, and PT analysis methods for PDA are not used in isolation for reservoir-property estimation, but rather as a starting point for single-well and multiwell reservoir simulation, which is then used to history match and forecast CBM-well production (e.g., for reserves assignment). To study the effects of permeability anisotropy upon production, a 2D, single-phase, numerical CBM-reservoir simulator was constructed to simulate single-well production assuming various permeability-anisotropy ratios. Only large permeability ratios ({lt} 16:1) appear to have a significant effect upon single-well production characteristics. Multilayer reservoir characteristics may also be observed with CBM reservoirs because of vertical heterogeneity, or in cases where the coals are commingled with conventional (sandstone) reservoirs. In these cases, the type-curve, FMB, and PT analysis techniques are difficult to apply with confidence. Methods and tools for analyzing multilayer CBM (plus sand) reservoirs are presented. Using simulated and field examples, it is demonstrated that unique reservoir properties may be assigned to individual layers from commingled (multilayer) production in the simple two-layer case.

Clarkson, C.R.; Bustin, R.M.; Seidle, J.P. [ConocoPhillips Canada, Calgary, AB (Canada)

2007-06-15T23:59:59.000Z

494

Simulation of CO2 Sequestration and Enhanced Coalbed Methane Production in Multiple Appalachian Basin Coal Seams  

SciTech Connect

A DOE-funded field injection of carbon dioxide is to be performed in an Appalachian Basin coal seam by CONSOL Energy and CNX Gas later this year. A preliminary analysis of the migration of CO2 within the Upper Freeport coal seam and the resulting ground movements has been performed on the basis of assumed material and geometric parameters. Preliminary results show that ground movements at the field site may be in a range that are measurable by tiltmeter technology.

Bromhal, G.S.; Siriwardane, H.J.; Gondle, R.K.

2007-11-01T23:59:59.000Z

495

Influence of coal quality factors on seam permeability associated with coalbed methane production.  

E-Print Network (OSTI)

??Cleats are natural fractures in coal that serve as permeability avenues for darcy flow of gas and water to the well bore during production. Theoretically,… (more)

Wang, Xingjin

2007-01-01T23:59:59.000Z

496

Controlling Bottom Hole Flowing Pressure Within a Specific Range for Efficient Coalbed Methane Drainage  

Science Journals Connector (OSTI)

To analyze the effects of the BHFP on individual well production rates, the BHFP–time curve, daily water/gas production equivalent–time curve, and three critical BHFP values of each CBM well are shown in Figs. 4,...

Bin Zhao; Zhi-Yin Wang; Ai-Mei Hu; Yu-Yang Zhai

2013-11-01T23:59:59.000Z

497

Coalbed Methane Production Analysis and Filter Simulation for Quantifying Gas Drainage from Coal Seams  

Science Journals Connector (OSTI)

Gas and water production rate analysis of CBM wells help determining dynamic reservoir properties of ... for estimating GIP and its change between particular production periods. Moreover, geostatistics can be use...

C. Özgen Karacan; Ricardo A. Olea

2014-01-01T23:59:59.000Z

498

Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production  

SciTech Connect

The purpose of this study is to evaluate the potential benefits of applying multiseam [well] completion (MSC) technology to the massive stack of low-rank coals in the Powder River Basin. As part of this, the study objectives are: Estimate how much additional CBM resource would become accessible and technically recoverable--compared to the current practice of drilling one well to drain a single coal seam; Determine whether there are economic benefits associated with MSC technology utilization (assuming its widespread, successful application) and if so, quantify the gains; Briefly examine why past attempts by Powder River Basin CBM operators to use MSC technology have been relatively unsuccessful; Provide the underpinnings to a decision whether a MSC technology development and/or demonstration effort is warranted by DOE. To a great extent, this assessment builds on the previously published study (DOE, 2002), which contains many of the key references that underlie this analysis. It is available on the U.S. Department of Energy, National Energy technology Laboratory, Strategic Center for Natural Gas website (www.netl.doe.gov/scng). It is suggested that readers obtain a copy of the original study to complement the current report.

Office of Fossil Energy; National Energy Technology Laboratory

2003-09-01T23:59:59.000Z

499

Wind Offshore Port Readiness | Department of Energy  

Office of Environmental Management (EM)

Wind Offshore Port Readiness Wind Offshore Port Readiness This study will aid decision-makers in making informed decisions regarding the choice of ports for specific offshore...

500

Blyth Offshore Wind Ltd | Open Energy Information  

Open Energy Info (EERE)

Blyth Offshore Wind Ltd Jump to: navigation, search Name: Blyth Offshore Wind Ltd Place: United Kingdom Sector: Renewable Energy, Wind energy Product: Blyth Offshore Wind Limited,...